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Dr. Lorenz Holzer

Dr. Lorenz Holzer

Dr. Lorenz Holzer

ZHAW School of Engineering
Research Group Multiphysics Modeling and Imaging
Technikumstrasse 71
8400 Winterthur

+41 (0) 58 934 77 90
lorenz.holzer@zhaw.ch

Membership of networks

Projects

Publications

Articles in scientific journal, peer-reviewed
Book parts, peer-reviewed

  • Holzer, Lorenz; Cantoni, Marco,

    2012.

    Review of FIB tomography

    .

    In:

    Utke, Ivo; Moshkalev, Stanislav; Russel, Philip E., eds.,

    Nanofabrication using focused ion and electron beams : principles and applications.

    New York:

    Oxford University Press.

    pp. 410-435.

    Oxford series in nanomanufacturing.

Conference contributions, peer-reviewed
Other publications
Oral conference contributions and abstracts

Publications before appointment at the ZHAW

List of publications from Lorenz Holzer (ORCID 0000-0002-3532-5994)

see also: www.researchgate.net/profile/Lorenz_Holzer

X = peer reviewed SCI-Publications
XX = invited contribution or invited book section
XXX = organized conferences and workshops

Publications 2017:
X Holzer, L., Pecho, O., Schumacher, J., Marmet, P., Stenzel, O., Büchi, F.N., Lamibrac, A. and Münch, B., 2017, Microstructure-property relationships in a gas diffusion layer (GDL) for Polymer Electrolyte Fuel Cells, Part I: effect of compression and anisotropy of dry GDL, Electrochim. Acta. 227, 419–434. doi:10.1016/j.electacta.2017.01.030.

X Holzer, L., Pecho, O., Schumacher, J., Marmet, P., Büchi, F.N., Lamibrac, A. and Münch, B., 2017, Microstructure-property relationships in a gas diffusion layer (GDL) for Polymer Electrolyte Fuel Cells, Part II: effect of compression and anisotropy of dry GDL, Electrochim. Acta. 227, in press.
X Stenzel, O., Neumann, M., Pecho, O., Holzer, L. and Schmidt, V., 2017, Big data for microstructure-property relationships: a case study of predicting effective conductivities, AIChE J. in press. doi: 10.1002/aic.15757.

X Steiger, P., Delmelle, R., Foppiano, D., Holzer, L., Heel, A., Nachtegaal, M., Kröcher, O. and Ferri, D., 2017, Stable Ni particles through structural reversibility in La-Fe-Ni perovskite type metal oxide catalysts, ChemSusChem. doi:10.1002/cssc.201700358.

X Prestat, M., Holzer, L., Lescop, B., Rioual, S., Zaubitzer, C., Diler, E. and Thierry, D., (2017), Microstructure and spatial distribution of corrosion products anodically grown on zinc in chloride solutions, Electrochemistry communications (submitted)

X Keller, L. and Holzer, L. Impact of sand-content in shales on permeability and anisotropy: Implications from upscaling in multi-scale imaging, Applied Clay Science (submitted)

X Capone, L., Marmet, P., Holzer, L., Dujc, J., Schumacher, J. O., Lamibrac, A., Buechi, F.N. and Becker, J. (2017). An ensemble Monte Carlo simulation study of water distribution in porous gas diffusion layers for proton exchange membrane fuel cells. ASME Journal of Electrochemical Energy Conversion and Storage (submitted)

Boiger, G., Ott, T., Holzer, L., Penner, D., Gorbar, M., De Hasan, Y., Schneider, I., Cervery, R , A multi-parameter improvement method for (micro-)structureal properties of high performance ceramics, (2017), Int. J. Multiphysics (submitted)

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Conference contributions and lectures 2017:
X X L. Holzer, F. Büchi, D. Penner, M. Neumann, V. Schmidt (2017) invited lecture: Microstructure Characteristics Controlling the Liquid Permeability: Case Studies of Separation Membranes and PEM Gas Diffusion Layers, 12th European Conference on Stochastics and Image Analysis (ECSIA), Kaiserslautern D

M. Neumann, O. Stenzel, O. Pecho, L. Holzer, V. Schmidt (2017) On the Combination of Stochastic Modeling, Image Analysis and Numerical Simulation for Virtual Materials Testing, 12th European Conference on Stochastics and Image Analysis (ECSIA), Kaiserslautern D

L. Holzer, J. Schumacher, O. Pecho, O. Stenzel, A. Lamibrac, F. Büchi, B. Münch (2017) Microstructure limitations for relative permeability and liquid drainage in fibrous GDL (PEFC): The importance of the 'short range effect' In: ModVal 14. Karlsruhe Institute of Technology KIT, Karlsruhe D.

M. Neumann, O. Stenzel, O. Pecho, L. Holzer, V. Schmidt (2017) Big data for microstructure-property relationships: a case study of predicting effective conductivities, In: ModVal 14. Karlsruhe Institute of Technology KIT, Karlsruhe D.

J.O. Schumacher, J. Dujc, P. Marmet, R. Vetter, L. Holzer, A. Lamibrac, & F.N. Büchi (2017) Influence of pore-scale material properties on the performance of proton exchange membrane fuel cells. In: ModVal 14. Karlsruhe Institute of Technology KIT, Karlsruhe D.

J.O. Schumacher, J. Dujc, P. Marmet, L. Holzer, R. Vetter, A. Forner-Cuenca, M. Cochet, P. Boillat, A. Lamibrac, F.N. Büchi (2017) From pore-scale material properties to macro-homogenous PEFC modeling, 7th Int. Conf. on ”Fundamentals & Development of Fuel Cells”, Stuttgart (31.1.-2.2.2017).

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Publications 2016:

X Holzer, L., Stenzel, O., Pecho, O., Ott, T., Boiger, G., Gorbar, M., de Hazan, Y., Penner, D., Schneider, I., Cervera, R., and Gasser, Ph., (2016), Fundamental relationships between 3D pore topology, electrolyte conduction and flow properties: Towards knowledge-based design of ceramic diaphragms for sensor applications, Materials & Design, 99, 314–327. doi.org/10.1016/j.matdes.2016.03.034

X Stenzel, O., Neumann, M., Pecho, O., Schmidt, V. and Holzer, L. (2016). Predicting Effective Conductivities Based on Geometric Microstructure Characteristics. AIChE Journal, 62(5), 1834–1843. doi.org/10.1002/aic.15160

X Neumann, M., Stanek, J., Pecho, O., Holzer, L., Benes, V. and Schmidt, V. (2016) Stochastic 3D modeling of complex three-phase microstructures in SOFC-electrodes with completely connected phases, Comput. Mater. Sci., 118, 353–364. doi.org/10.1016/j.commatsci.2016.03.013

X Mangipudi, K. R., Radisch, V., Holzer, L., & Volkert, C. A. (2016). A FIB-nanotomography method for accurate 3D reconstruction of open nanoporous structures. Ultramicroscopy, 163, 38–47. doi.org/10.1016/j.ultramic.2016.01.004

X Burnat, D., Kontic, R., Holzer, L., Steiger, P., Ferri, D. and Heel, A. (2016) Smart material concept: reversible microstructural self-regeneration for catalytic applications, J. Mater. Chem. A. 4, 11939–11948. doi:10.1039/C6TA03417A.

X Delmelle, R.R., Duarte, R.B., Franken, T., Burnat, D., Holzer, L., Borgschulte, A. and Heel, A. (2016) Development of improved nickel catalysts for sorption enhanced CO2 methanation, Int. J. Hydrogen Energy. 41, 20185–20191. doi:10.1016/j.ijhydene.2016.09.045.

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Conference contributions 2016:

Gorbar M., De Hazan, Y., Holzer, L., Boiger, G., Cervera, R. and Penner, D. (2016) Controlled Porous Microstructure and its Effect on Transport Properties within YSZ Diaphragms of pH Electrodes, IIC6 (6th International Congress on Ceramics) Dresden, D 21.-26.8.2016, DKG / German Ceramic Society and Fraunhofer Institute for Ceramic Technologies and Systems IKTS

Holzer, L, Pecho, O, Hocker, T, Neumann, M. and Schmidt, V. (2016) Optimization of Ni-YSZ Anode performance using virtual materials testing, Modval 13. EPF Lausanne.
Burnat, D., Kontic, R., Holzer, L., Mai, A. and Heel., A. SMART catalyst based on doped Sr-titanite for advanced SOFC anodes (B1403), European Fuel Cell Forum EFCF, 5.-8.7.2016, KKL Lucerne

Ott, T, Bonmarin, M, Boiger, G, Schmid, B., Holzer, L., Münch, M. (2016) Active thermal imaging for skin cancer diagnostic supported by numerical 3D heat transfer skin model, Poster at Int. Conf. of Multiphysics Society, Zürich

Boiger, G., Ott, T., Holzer, L., Penner, D., Gorbar, M., De Hasan, Y., (2016) A Multi-parameter optimization method for the design of porous diaphragms applied in PH measurement, International Conference of Multiphysics, Winterthur, 12.2016

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Publications 2015:

X Pecho, O., Iwanschitz, B., Münch, B., Hocker, Th., Prestat, M., Flatt, R. J. & Holzer, L. (2015). 3D Microstructure effects in Ni-YSZ anodes: Influence of TPB lengths on electrochemical performance. Materials, 8, 7129-7144.

X Pecho, O., Stenzel, O., Iwanschitz, B., Gasser, Ph., Neumann, M., Schmidt, V., Prestat, M., Hocker, Th., Flatt, R. J. & Holzer, L. (2015). 3D Microstructure effects in Ni-YSZ anodes: Prediction of effective transport properties and optimization of redox stability. Materials, 8, 5554-5585.

X Pecho, O., Holzer, L., Yáng, Z., Martynczuk, J., Hocker, T., Flatt, R. J., & Prestat, M. (2015). Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes. Journal of Power Sources, 274, 295–303. doi:10.1016/j.jpowsour.2014.10.060

X Linder, M., Hocker, T., Holzer, L., Pecho, O., Friedrich, K.A., Morawietz, T., Hiesgen, R., Kontic, R., Iwanschitz, B., Mai, A. and Schuler, J.A. (2015). Ohmic resistance of nickel infiltrated chromium oxide scales in solid oxide fuel cell metallic interconnects. Solid State Ionics, 283, 38-51. doi.org/10.1016/j.ssi.2015.11.003

X Linder, M., Hocker, T., Meier, C., Holzer, L., Friedrich, K. A., Iwanschitz, B., Mai. A and Schuler, J. A. (2015). A model-based approach for current voltage analyses to quantify degradation and fuel distribution in solid oxide fuel cell stacks. Journal of Power Sources, 288, 409–418. doi:10.1016/j.jpowsour.2015.04.136

X Keller, L. M., Holzer, L., Gasser, P., Erni, R., & Rossell, M. D. (2015). Intergranular pore space evolution in MX80 bentonite during a long-term experiment. Applied Clay Science, 104, 150–159. doi.org/10.1016/j.clay.2014.11.024

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Conference contributions and lectures 2015:

Holzer, L. and Hocker, T. (2015) Influence of Coffee-bed Microstructure on Extraction and Quality, Swiss Food Research meeting, ZHAW Wädenswil, 2.6.2015

X X Holzer, L. (2015) invited lecture, Understanding the influence of electrode microstructure: methods and applications, 3rd Int. Workshop on degradation issues of Fuel Cells and Electrolysers (3rd DegIs), Santorini, Greece, 29.9.-1.10.2015.

Pecho, O., O. Stenzel, B. Iwanschitz, R. J. Flatt, T. Hocker, L. Holzer, Improved redox-stability of Ni-YSZ anodes based on 3D microstructure and experimental analyses, 12th International Conference on Materials Chemistry (MC12), University of York, United Kingdom, 20-23. July 2015.

Pecho, O., O. Stenzel, M. Neumann, B. Iwanschitz, V. Schmidt, T. Hocker, R. J. Flatt, L. Holzer, Optimization of redox stability and electrochemical performance of Ni-YSZ anodes based on detailed 3D microstructure analyses, Materials and Processes Graduate Symposium, ETH Zurich, Zurich, Switzerland, 3. June 2015.

Schumacher, J. Dujc, J. Capone, L. Stenzel, O. Holzer, L, Lamibrac, A. & Büchi, F. (2015) Parametrization of macrohomogeneous models of proton exchange mambrane fuel cells. In: ModVal 12. Fraunhofer ISE, Munzingen/Freiburg, D.

Neumann, M. Stanek, J. Pecho. O. Holzer, L., Benes, V. & Schmidt, V. (2015) Stochastic microstructure modeling of porous Ni-YSZ anodes with emphasis on connectivity properties. In: ModVal 12. Fraunhofer ISE, Munzingen/Freiburg, D.

Linder, M. Hocker, T. Meier, C. Holzer, L. Friedrich, K.A. Iwanschitz, B. Mai, A. & Schuler, J.A. (2015) Quantification of SOFC stack degradation and fuel distribution based on current voltage data. In: ModVal 12. Fraunhofer ISE, Munzingen/Freiburg, D.

Capone, L., Holzer, L., Lamibrac, A. Dujic, J. Stenzel, O., Büchi, F. & Schumacher, J. (2015) Voxel-based modelling of water distribution in PEM porous media. Poster contribution In: ModVal 12. Fraunhofer ISE, Munzingen/Freiburg, D.

Dold, M., Hocker, T. Linder, M., Holzer, L., Mai, A. & Schuler, J.A. (2015) Model-based analysis of electrochemical impedance spectra of solid oxide fuel cells. Poster contibution In: ModVal 12. Fraunhofer ISE, Munzingen/Freiburg, D.

Gorbar, M., De Hazan, Y., Penner, D., Holzer, L., Boiger, G., Cervera. R.J. and Schneider, I.A. (2015). Extrusion of YSZ diaphragms with controlled porosity used as liquid junction in pH electrodes. In: 14th Int. Conf of Europ. Ceram. Soc. ECERS, Toledo, Spain

Heel, A., Kontic, R., Holzer, L., Steiger, P., Ferri, D., Nachtegaal, M., Kröcher, O., Madi, H. van Herle, J., Schuler, A. and Mai, A. (2015). SERAN - Self-Regenerating Smart Materials for Solid Oxide Fuel Cells, Biosweet: 1st Biomass for Swiss Energy Future Conference, Villigen, 02.12.2014.

Heel, A. Holzer, L., et. al, (2015) CO2 Reduction & Reuse – Renewable Fuels for Efficient Electricity Production, NRP70 Kick-off Meeting, Lucerne, 24.04.2015

Fritscher G., Kogler S., Huber T., Opitz A., Fleig J., Heel A., Burnat D., Holzer L. (2015) Electrochemical properties of La0.2Sr0.7TiO3 thin film electrodes under reducing conditions, EMRS - European Materials Research Society 2014, Lille – France, Spring Meeting, 26-30.05.2014

Bonmarin, M., Holzer, L., Schmid. B. (2015) On the potential of active thermal imaging for skin cancer diagnostic, 25. Deutscher Hautkrebskongress Arbeitsgemeinschaft Dermatologische Onkologie (ADO), München, 10.-12.9.2015 (Poster)

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Publications 2014:

X Gaiselmann, G., Neumann, M., Schmidt, V., Pecho, O., Hocker, T., & Holzer, L. (2014). Quantitative relationships between microstructure and effective transport properties based on virtual materials testing. AIChE Journal, 60(6), 1983–1999. doi:10.1002/aic.14416

XX Cantoni, M., & Holzer, L. (2014). Advances in 3D focused ion beam tomography. MRS Bulletin, 39 (April), 354–360. doi:10.1557/mrs.2014.54, invited paper

X Linder, M., Hocker, T., Holzer, L., Friedrich, K. A., Iwanschitz, B., Mai, A., & Schuler, J. A. (2014). Model-based prediction of the ohmic resistance of metallic interconnects from oxide scale growth based on scanning electron microscopy. Journal of Power Sources, 272, 595–605. doi:10.1016/j.jpowsour.2014.08.098

X Keller, L. M., Seiphoori, A., Gasser, P., Lucas, F., Holzer, L., & Ferrari, A. (2014). The pore structure of compacted and partly saturated MX-80 bentonite at different dry densities. Clays and Clay Minerals, 62(3-4), 174–187. doi:10.1346/CCMN.2014.0620302

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Conference contributions and lectures 2014:

Holzer, L., Hocker, T., Iwanschitz, B., Pecho, O., Flatt, R., Gaiselmann, G. & Neumann, M. (2014) Unraveling microstructure effects in Ni-YSZ anodes by 3D-analysis, FE-simulation and experimental characterization. B1104, In: 11th Europ. Fuel Cell Forum (ed. N. e. a. Christiansen). EFCF, Luzern.

Linder, M. Hocker, T. Holzer, L, Friedrich, K.A., Iwanschitz, B., Mai, A. and Schuler, J.A. (2014) Oxide (Cr2O3) scale growth on metallic interconnects and its impact on ohmic resistance: Combined study of image analysis and modeling, A1403. In: 11th European Fuel Cell Forum (ed. N. e. a. Christiansen). EFCF, Luzern.

Pecho, O., Holzer, L., Yang, Z., Martynczuk, J., Hocker, T., Flatt, R.J. and Prestat, M. (2014) Effects of sintering temperature on composition, microstructure and electrochemical performance 0f spray pyrolysed LSC thin film cathodes, In: 11th European Fuel Cell Forum (ed. N. e. a. Christiansen). EFCF, Luzern.

Pecho, O., Holzer, L., Yang, Z., Martynczuk, J., Hocker, T., Flatt, R. & Prestat, M. (2014) Quantitative microstructural analysis and electrochemical performance of thin La0.6Sr0.4CoO3-δ cathodes. In: Modval 11. ZHAW Winterthur, Winterthur.

Pecho, O., Holzer, L., Hocker, T., Iwanschitz, B., Flatt, R., Gaiselmann, G., Neumann, M. & Prestat, M. (2014) Microstructure effects in Ni-YSZ anodes: 3D-analysis, FE-simulation and experimental correlation. In: Modval 11. ZHAW Winterthur, Winterthur.

Linder, M., Hocker, T., Holzer, L., Friedrich, K. A., Iwanschitz, B., Mai, A. & Schuler, J. A. (2014) Effects of Cr2O3 layer morphology on SOFC-interconnect resistance. In: ModVal11. ZHAW, Winterthur.

Neumann, M., Gaiselmann, G., Pecho, O., Hocker, T., Schmidt, V. & Holzer, L. (2014) Stochastic Spatial Graph Model for Investigating the Microstructure Influence on Effective Transport Properties. In: 11th German Probablilty and Statistics Day (GPSD). Ulm University, Ulm.

Neumann, M., Gaiselmann, G., Pecho, O., Hocker, T., Schmidt, V. & Holzer, L. (2014) Quantitative Relationships between Microstructure and Effective Transport Properties based on Virtual Materials Testing. In: ModVal 11. ZHAW Winterthur, Winterthur.

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International Conferences and Symposia organized in 2014:

XXX Main organizer of ModVal11, int. Symp. on Modeling and Validation of Fuel Cells and Batteries, 17.-19. March 2014, Winterthur, Switzerland
www.icp.zhaw.ch/en/engineering/institutes-centres/institute-of-computational-physics/news-and-events/modval-11.html

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Publications 2013:

X Holzer, L., Iwanschitz, B., Hocker, T., Keller, O.,Pecho, L., Sartoris, G., Gasser, P. & Muench, B. (2013). Redox cycling of Ni-YSZ anodes for Solid Oxide Fuel Cells: Influence of tortuosity, constriction andpercolation factors on the effective transport properties. Journal of Power Sources. 242, 179-194.

X Holzer, L., Wiedenmann, D., Muench, B., Keller, L., Prestat, M., Gasser, P., Robertson, I. & Grobéty, B. (2013). The influence of constrictivity on the effective transport properties of porous layers inelectrolysis and fuel cells. Journal of Materials Science, 48, 7, 2934-2952.

XX Holzer, L. and M. Cantoni (2013). Chapter 11: Review of FIB-tomography. In: Nanofabrication using focused ion and electron beams: Principles and applications. Eds. I. Utke, S.A. Moshkalev, Ph. Russell. Oxford University Press, NY, USA, ISBN 9780199734214, p 410-435.

X Gaiselmann, G., Neumann, M., Holzer, L., Hocker, T., Prestat, M. & Schmidt, V. (2013). Stochastic 3D modeling of La0.6Sr0.4CoO3-d cathodes based on structural segmentation of FIB-SEM Images. Comp. Mater. Sci 67, 48-62.

X Keller, L., Ph. Schuetz, R. Erni, M.D. Rossell, F. Lucas, P. Gasser, and L. Holzer (2013) Characterization of multi-scale microstructural features in Opalinus Clay. Microporous and Mesoporous Materials 170:83-94.

X Keller, L., Holzer, L., Schuetz, P. & Gasser, P. (2013) Pore-space relevant for gas permeability in Opalinus Clay: Statistical analysis of homogeneity, percolation and representative volume element (RVE). Journal of Geophysical Research B: Solid Earth, 118, 2799-2812.

X Linder, M., T. Hocker, L. Holzer, B. Iwanschitz, A. Mai, and J. A. Schuler. 2013. Cr2O3 scale growth rate under “real” dual atmospheres operating conditions with natural gas fuel over required 40’000 hours SOFC stack lifetime. Journal of Power Sources 243, 508-518.

X Wiedenmann, D., Keller, L., Holzer, L., Stojadinovic, J., Münch, B., Suarez, L., Fumey, B., Hagendorfer, H., Brönnimann, R., Modregger, P., Gorbar, M., Vogt, U., Züttel, A., La Mantia, F., Wepf, R. & Grobéty, B. (2013) 3D pore structure and ion conductivity of porous ceramic diaphragms. AIChE Journal, 59, 1446-57.

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Conference contributions and lectures 2013:

Holzer, L., L. Keller, T. Hocker, O. Pecho, B. Muench, P. Gasser, B. Iwanschitz, M. Neumann, G. Gaiselmann, and V. Schmidt. 2013. Microstructure degradation in SOFC anodes: Relationship between topological parameters and transport properties. Paper read at 10th Symposium on Fuel Cell and Battery Modelling and Experimental Validation – ModVal 10, at Bad Boll/Stuttgart.

Linder, M., T. Hocker, L. Holzer, B. Iwanschitz, A. Mai, and J. A. Schuler. 2013. Cr2O3 scale growth rates on metallic interconnectors derived from 40’000 hours solid oxide fuel cell stack operation. Paper read at 10th Symposium on Fuel Cell and Battery Modelling and Experimental Validation – ModVal 10, at Bad Boll/Stuttgart.Neumann, M. Modval

Neumann, M., G. Gaiselmann, L. Holzer, O. Pecho, and V. Schmidt. 2013. Microstructure influence on effective transport properties investigated by means of a stochastic simulation model. Paper read at 10th Symposium on Fuel Cell and Battery Modelling and Experimental Validation – ModVal 10, at Bad Boll/Stuttgart.

Prestat, M. Evans, A., Tölke, R., Martynczuk, J., Gauckler, L.J., Pecho, O., Holzer, L., Stender, D., Schneider, C. (2013) Thin La0.6Sr0.4CoO3-δ cathodes for low-temperature micro-solid oxide fuel cells. E-MRS Spring Meeting, Strasbourg, France, May 2013.

Mangipudi1, K.R., Epler, E., Holzer, L. and Volkert, C.A., 2013 Elastoplastic behaviour of interpenetrating phase composites: Combining mechanics of cellular solids with mean-field theory, 3rd int conf. Materials Modelling ICMM, 8.-11.9.2013, Warsaw, Poland.

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Publications 2012:

X Burnat, D., Heel, A., Holzer, L., Kata, D., Lis, J., Graule, T. (2012) Synthesis and Performance of A-Site Deficient Lanthanum-Doped Strontium Titanate by Nanoparticle Based Spray Pyrolysis. J Power Sources, 201, 26-36.

X Burnat, D., Heel, A., Holzer, L., Otal, E. H., Kata, D. & Graule, T. (2012b). On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials. International Journal of Hydrogen Energy, 37 (23):18326-18341.

X Iwanschitz, B., Holzer, L., Mai, A., Schütze, M. (2012) “Nickel agglomeration in solid oxide fuel cells: the influence of temperature” Solid State Ionics, 211, 69-73.

X Gruber, I., Zinovik, I., Holzer, L., Flisch, A. & Poulikakos, L. D. (2012). A computational study
of the effect of structural anisotropy of porous asphalt on hydraulic conductivity. Construction and Building Materials 96, 66-77.

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International Conferences and Symposia co-organized in 2012:

XXX Co-Organizer interdisciplinary symposium on 3D-microscopy, SSOM, 5.-8. March 2012, Les Diablerets, Switzerland (http://www.ssom.ch/3D/)

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Conference contributions and lectures 2012:

Holzer, L., Cantoni, M., Gasser, Ph., Münch, B. and Keller, L. (2012) FIB-tomography: Review and discussion of applications in materials science, Interdisciplinary symposium on 3D-microscopy, SSOM, 5-8.3.2012, Les Diablerets, Switzerland

Holzer, L., Hocker, Th., Keller, L., Prestat, M., et al (2012) Quantitative tomography for the prediction of transport kinetics in SOFC electrodes and in porous diaphragms for electroysis cells, European Materials Research Society E-MRS Spring Meeting, Strasbourg, France, May 2012

Pecho, O., M. Prestat, Z. Yang, J. H. Hwang, J.W. Son, L. Holzer, T. Hocker, J. Martynczuk, and L. Gauckler. 2012. Microstructural and electrochemical characterization of thin La0.6Sr0.4CoO3-δ cathodes deposited by spray pyrolysis. Paper read at 10th European Fuel Cell Forum EFCF, at Lucerne, CH, B04-61

Pecho, O., Holzer, L., Yang, Z., Hocker, Th., Flatt, R.J., Martinzuk, J., Gauckler, L. and Prestat (2012) Quantitative microstructure analysis and electrochemical activity of La0.6Sr0.4CoO3-d electrodes deposited by spray pyrolysis, Materials Research Fall Meeting MRS, Boston, USA, November 2012

Pecho, O., Prestat, M., Yáng, Z., Holzer, L., Hocker, T., Martynczuk, J., Gauckler, L.J. Quantitative microstructure analysis and electrochemical characterization of La0.6Sr0.4CoO3-δ electrodes deposited by spray pyrolysis, CFN Summer School on Nano-Energy, Bad Herrenalb, Germany, September 14-17th, 2012.(Poster)

Iwanschitz, B., Holzer, L., Mai, A. and Schütze, M. (2012) Nickel agglomeration in solid Oxide Fuel Cells under different operating conditions, Proc. of the 10th European Fuel Cell Forum, Eds. F. Lefebvre-Joud et al, Lucerne, Switzerland, p. A1001.

Iwanschitz, B., Holzer, L., Mai, A. and Schütze, M. (2012). “Ni-agglomeration in solid oxide fuel cells under different operating conditions” Jahrestreffen Fachgruppen Energieverfahrenstechnik und Hochtemperaturtechnik, 7.-9.3.2012 DECHEMA, Frankfurt (D).

Schuler, J.A., Iwanschitz, B., Holzer, L., Cantoni, M., Graule, Th. (2012) Stroboscopic Ni Growth/Volatilization Picture, Proc. of the 10th European Fuel Cell Forum, Eds. F. Lefebvre-Joud et al, Lucerne, Switzerland, p. B0501.

Prestat, M., A. Evans, R. Tölke, M.V.F. Schlupp, B. Scherrer, Z. Yang, J. Martynczuk, O. Pecho, H. Ma, A. Bieberle-Hutter, L. Gauckler, Y. Safa, T. Hocker, L. Holzer, P. Muralt, Y. Yan, J. Courbat, D. Briand, and N.F. de Rooij. 2012. Miniaturized free-standing SOFC membranes on silicon chips. Paper read at 10th European Fuel Cell Forum EFCF, at Lucerne, CH. A07-30.

Prestat,M., Z. Yáng, O. Pecho, L. Holzer, J. Martynczuk, A. Evans, L. Gauckler, T. Hocker, J. Hwang, and J. Son, Nanostructured La0.6Sr0.4CoO3-δ Cathodes Prepared by Spray Pyrolysis for Thin Film SOFC, PRIME2012, Honolulu, oct 7-12 (Pacific Rim Meeting on electrochem. and solid-state science / 222nd meeting of ECS)

Prestat, M., Holzer, L., Hocker, Th., Pecho, O., et al. Miniaturized solid oxide fuel cells on a chip, 9th Symp. on Fuel Cell and Battery Modeling and Experimental Validation Modval, Sursee, Switzerland, April 2012

Neumann, M., Gaiselmann, G. Spettl, A., Holzer, L., Hocker, Th., Prestat, M. and Schmidt, V. (2012) Structural Segmentation and Stochastic 3D modeling of La0.6Sr0.4CoO3-d - cathodes, 9th Symp. on Fuel Cell and Battery Modeling and Experimental Validation Modval, Sursee, Switzerland, April 2012

Keller, L. and Holzer, L., (2012) Imaging methods and its use in characterizing the pore space of Opalinus Clay in 3D, Int. Clay Conference, Monpelier, France

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Publications 2011:

X Holzer, L., Iwanschitz, B., Hocker, Th., Münch, B., Prestat, M., Wiedenmann, D., Vogt, U., Holtappels, P., Sfeir, J., Mai, A., and Graule, Th. (2011) “Microstructure degradation of cermet anodes for solid oxide fuel cells: Quantification of nickel grain growth in dry and in humid atmospheres” J Power Sources, 196, 1279–1294.

X Holzer, L., Münch, B., Iwanschitz, B., Cantoni, M., Hocker, Th. and Graule, Th. (2011) ‘Quantitative relationships between composition, particle size, triple phase boundary length and surface area in nickel-cermet anodes for Solid Oxide Fuel Cells’, J Power Sources, 196 (2011) 7076– 7089.

X Keller, L.M., Holzer, L., Wepf, R., Gasser, Ph. (2011) ‘3D geometry and topology of pore pathways in Opalinus clay: Implications for mass transport’ Applied Clay Science, 52, 85-95.

X Keller, L.M., Holzer, L., Wepf, R., Gasser, Ph., Münch, B. and Marschall, P. (2011). On the application of focused ion beam nanotomography in characterizing the pore space of Opalinus clay in 3D, Physics & Chemistry of the Earth, 36:1539-1544

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Conference contributions and lectures 2011:

XX Holzer L., Keller, L. and Muench, B. „Quantitative microstructure analysis in materials science”, Lectures at the Summer Academy 2011 " Stochastic Analysis, Modelling and Simulation of Complex Structures" September 11th to September 24th, 2011, Soellerhaus, Kleinwalsertal, D

XX Holzer L., Hocker, T., Iwanschitz, B., „Microstructure analysis and modelling related to degradation of SOFC-electrodes“ 2nd int. Workshop on fuel cell degradation, 21.-23.9.2011, Thessaloniki, Greece

XX Holzer L. „Microstructure effects on the activity of SOFC electrodes: basic principles and preliminary results”, Workshop “Thin Films for Solid Oxide Fuel Cells” ETHZ, Switzerland, 12.7.2011

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International Conferences and Symposia co-organized in 2011:

XXX Co-Organizer of 6th int. FIB workshop, SSOM-DGE/DGM-ASEM, 27.-29.6.2011, ETH Zürich, Switzerland (http://www.felmi-zfe.tugraz.at/FIB/)

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Publications 2010:

X Holzer, L. Flatt, R.J., Erdogan, S.T. Bullard, J.W. and Garboczi, E.J. (2010). Shape comparison between 0.4 μm to 2.0 μm and 20 μm to 60 μm cement particles, J. Am. Ceram. Soc.93(6) 1626-1633.

X Holzer, L., B. Muench, et al. (2010). "3D-microstructure analysis of hydrated bentonite with cryo-stabilized pore water." Applied Clay Science: 45: 330-342.

X Solarska, R., Heel, A., Ropka, J., Braun, A., Holzer. L., Ye, J. and Graule T. (2010). " Nanoscale
calcium bismuth mixed oxide with enhanced photocatalytic performance under visible light" Applied Catalysis A: General, 382/2, 190-196

X Prestat, M., Morandi A., Holzer, L. et al (2010). ”Oxygen electrodes prepared with La0.6Sr0.4CoO3-δ nanoparticles and graphite pore former”. Electrochemistry communications, 12(2) 292-295.

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International Conferences and Symposia co-organized in 2010:

XXX Organisation of interdisciplinary Forum on Transport in Porous Materials, SSOM, 19./20.8.2010, Villigen, Switzerland. (http://lnm.web.psi.ch/transpore2010/index.html)

XXX Co-Organizer of 5th int. FIB workshop, SSOM-DGE/DGM-ASEM, 27.-28.6.2010, Vienna, Austria (http://www.ustem.tuwien.ac.at/5_fib_workshop_2010/) or (http://www.felmi-zfe.tugraz.at/FIB/)

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Conference contributions and lectures 2010:

Holzer L., Keller, L.M., Wepf R., Münch B. and Marschall P.(2010) Multiscale Imaging of the Pore Structure of Opalinus Clay, Clay conference in Nantes 2010

Holzer, L., Iwanschitz, B., Muench, B, Cantoni, M.(2010) ‘The microstructure of porous SOFC electrodes: new methodologies for reliable quantification and link with performance’, European Fuel Cell Forum, Luzern

XX L. Holzer, T. Hocker, B. Iwanschitz, M. Prestat, B. Münch and M. Cantoni .(2010) “Establishing the link between SOFC electrode performance and microstructure by means of FIB-tomography and image based modelling”, International collaborative workshop on 3D analysis of SOFC's, 6.7.2010, RISOE (Denmark) invited presentation

T. Hocker, B. Iwanschitz, L. Holzer “.(2010) Assessing the effect of electrode microstructure and degradation”, International collaborative workshop on 3D analysis of SOFC's, 6.7.2010, RISOE (Denmark)

Iwanschitz, B., Mai, A., Holzer, L., Hocker, Th. And Schütze, M. .(2010) “Degradation of Ni-cermet anodes in Solid Oxide Fuel Cells” European Fuel Cell Forum, Luzern

Robertson I, Holzer L., Prestat M. and Graule Th. (2010) ‘Continuous particle size distribution analysis of porous La0.6Sr0.4CoO3-d cathodes’, European Fuel Cell Forum, Luzern

Burnat D., Heel A., Holzer L., Kata D., and Graule Th. .(2010) ‘Spray pyrolysed and flame sprayed La0.2Sr0.7TiO3 powders applicable for Solid Oxide and Direct Carbon Fuel Cell Anodes, European Fuel Cell Forum, Luzern

T. Hocker, B. Iwanschitz, L. Holzer .(2010) “Assessing the effect of electrode microstructure on repeat unit performance and cell degradation”, MODVAL/ 7th symposium on fuel cell modelling and exp. Valid., 23.-24.3.2010, Morges (CH)

Wiedenmann D., Holzer L., Gorbar M., Vogt U., Zakaznova-Herzog V., Züttel A. and Grobéty B. .(2010) ‘Impact of multi-scale pore structure on ion conductivity of asbestos gas separation membranes for alkaline water electrolysis’ 4th int. Symposium on Hydrogen and Energy, 24.-29.1.2010, Wildhaus, CH

Pouchon, M.A., Cozzo C., Vaucher, S., Ishizaki K., Graule Th., Holzer L., Günther-Leopold I., Krepel J., Mikityuk K., .(2010) PINE – Platform for innovative nuclear fuel, PSI Energietagung, 11.6.2010, Viligen, CH

Vogt, U., Wiedenmann, D., Holzer, L. and Züttel, A. (2010), Analysis of Degradation and Aging Processes in Solid Oxide Elecrolyser Cells, CIMTEC Montecatini Terme, June 6-11 2010

Epler, E., Mangipudi, K. Holzer, L. and Volkert, C. (2010), Mechanical behavior of metal-polymer nanocomposites based on nanoporous Au, MRS Fall meeting, Boston, Nov 29 – Dec 2 2010

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Publications 2009:

XX Holzer, L. and B. Münch (2009). "Towards reproducible three-dimensional microstructure analysis of granular materials and complex suspensions." Microscopy and Microanalysis 15: 130-146. invited paper

X Zingg, A., F. Winnefeld, Holzer. L et al. (2009). "Interaction of polycarbosylate-based superplasticizers with cements containing different C3A amounts." Cement and Concrete Composites 31: 153-162.

Nurk, G., A. Kubacki, Holzer, L., Figi, R., Graule, T.J. and Holtappels, P. (2009). Influence of some inorganic impurities to the electrochemical properties and microstructure of Ni-CGO anode in artificial woodgas atmosphere. ECS Trans, 25, 2, 2117-2124, SOFC XI, Vienna.

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International Conferences and Symposia co-organized in 2009:

XXX Organisation of interdisciplinary symposium on 3D-microscopy, SSOM, 16-21.7.2009, Interlaken (http://www.ssom.ch/3D/)

XXX Co-Organizer of 4th int. FIB workshop, SSOM-DGE/DGM-ASEM, 29.-30.6.2009, Halle (http://www.felmizfe.tugraz.at/FIB/)
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Conference contributions and lectures 2009:

Holzer, L., B. Muench, et al. (2009). 3D-microstructure analysis of solid oxide fuel cell (SOFC) anode. Interdisciplinary Symposium on 3D Microscopy SSOM, Interlaken Switzerland.

Holzer, L. (2009). The influence of 3D-microstructural parameters of SOFC-performance. FIB-workshop D-A-CH, Halle (D), Arbeitskreis FIB DGM ASEM.

Holzer, L., B. Münch, et al. (2009). Cryo-stabilized pore structure of bentonite and opalinus clay. XIV International Clay Conference, Castellaneta Marinara (I), AISA, (1), 280.

Holtappels, P., P. Wyss, Holzer, L., et al. (2009). Application of advanced and non-destructive testing in solid oxide fuel cells. FCTools, Trondheim.

Solarska, R., A. Heel, Holzer, L., et al. (2009). Enhancement of photocatalytic performance of calcium bismuth mixed oxide by one-step flame spray synthesis. MRS Conference, SanFrancisco.

Marschall, P. and L. Holzer (2009). Laboratory and Field Experiments on Gas Transport in the Opalinus Clay of Northern Switzerland. Int. Conf. on Fault and Top Seals, Montpelier.

Nurk, G., A. Kubacki, Holzer, L. et al (2009). Influence of some inorganic impurities to the electrochemical properties and microstructure of Ni-CGO anode in artificial woodgas atmosphere. SOFC XI, Vienna.

Winnefeld,F., Zingg,A., Holzer,L., Pakusch,J., Becker,S. (2009) The ettringite – superplasticizer interaction and its impact on the ettringite distribution in cement suspensions. Sevilla, Spain

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Publications 2008:

X Zingg, A.; Winnefeld, F.; Holzer, L.; Pakusch, J.: Becker, S.; Gauckler, L. (2008). Adsorption of polyelectrolytes and its influence on the rheology, zeta potential and microstructure of various cement and hydrate phases, Journal of Colloid and Interface Science 323 (2008), 301-312.

X Zingg, A.; Holzer, L.; Kaech, A.; Winnefeld, F. (2008). The microstructure of dispersed and non-dispersed fresh cement pastes - new in-sight by cryo-microscopy, Cement and Concrete Research 38 (2008), 522-529.

X Münch, B. and Holzer, L. (2008). Contradicting Geometrical Concepts in Pore Size Analysis Attained with Electron Microscopy and Mercury Intrusion, J. Amer. Ceram. Soc., 91 (2008), 4059-4067.

X P. Trtik, J. Dual, B. Muench, L. Holzer (2008). On nanoscale surface roughness of hardened cement paste: ‘Virtual’ AFM experiments based on focussed ion beam-nanotomography (FIB-nt) datasets, J. micr., accepted for publication

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International Conferences and Symposia co-organized in 2008:

XXX Organisation of a Symposium “Focused Ion Beams for Materials Characterization and Micromachining” MRS Spring meeting 26.-28.3.2008, San Francisco) (http://www.mrs.org/s_mrs/sec.asp?CID=12501&DID=205597)

XXX Organizer of 3rd int. FIB workshop, SSOM-DGE/DGM-ASEM, 3.-4.7.2008, Luzern (http://www.felmi-zfe.tugraz.at/FIB/)

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Conference contributions and lectures 2008:

Holzer, L. Quantitative characterization of granular Textures in Suspensions using Cryo-FIB-nanotomography, MRS Spring Symposium 2008, San Francisco

Holzer, L. The link between 3D-parameters and material properties: a discussion based on FIB-tomography investigations, 3rd int. FIB workshop, SSOM-DGE/DGM-ASEM, 3.-4.7.2008, Luzern

Holzer, L, Münch, B., Trtik, P., Marone, F., Stampanoni, M.: SRnCT versus FIB-nanotomography – Comparison of 3D particle analyses from densely packed granular samples, 3DIMS-Conference, Carcans, 8.-12.9.2008 (Poster)

E. J. Garboczi, S. T. Erdogan, L. Holzer, R. J. Flatt, J. W. Bullard: Shape comparison between 0.4 - 2.0 and 20 - 60 micrometer cement particles, American Ceramic Society Cements Division annual meeting, oct. 2008, Pittsburgh, US

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Publications 2007:

X Holzer, L., Gasser, P., Kaech, A., Wegmann, M., Zingg, A., Wepf, R. and Münch, B. (2007). Cryo-FIB-nanotomography for quantitative analysis of particle structures in cement suspensions. Journal of Microscopy 227: 216-228.

X Uchic, M. D., Holzer, L., Inkson, B. J., Principe, E. L. and Munroe, P. (2007). 3D microstructural characterization using focused ion beam tomography. MRS Bulletin 32: 408-416.

X Yang, T.; Holzer, L.; Kägi, R.; Winnefeld, F.; Keller, B.: In-situ nanomanipulators as a tool to separate individual tobermorite crystals for AFM studies, Ultramicroscopy 107 (2007), 1068-1077.

X Roger Zurbriggen, Marco Herwegh, Andreas Jenni, Alexander De Gasparo, Lorenz Holzer, Thomas Aberle (2007) The influence of organic additives on the microstructural development and properties of mortars, ZKG INTERNATIONAL 60(2): 62-73.

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Conference contributions and lectures 2007:

XX Holzer, L.: invited speaker 4D-microscopy workshop ETHZ UniZ

XX Holzer, L.: invited speaker Microscopy and Microanalysis, Fort Lauderdale, Florida/US

Zingg, A.; Holzer, L.; Winnefeld, F.; Pakusch, J.; Becker, S.; Gauckler, L.: Vergleichende Cryo-mikroskopische Untersuchung der Gefügeentwicklung frischer Zementpasten mit und ohne Fliessmittel, 9. GDCh-Tagung Bauchemie, Siegen, Germany, September 27-28, 2007, GDCh-Monographie Bd. 37, 55-62.

Winnefeld, F.; Zingg, A.; Holzer, L.; Figi, R.; Pakusch, J.; Becker, S.: Interaction of polycarboxylate-based superplasticizers and cements: Influence of polymer structure and C3A-content of cement, 12th International Congress on the Chemistry of Cement, Montreal, Canada, July 8-13, 2007, paper M6-03.2.

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Publications 2006:

X Holzer, L., Münch, B., Wegmann, M., Flatt, R. & Gasser, P., 2006. FIB-Nanotomography of particulate systems - part I: particle shape and topology of interfaces. Journal of the American Ceramic Society, 89(8): 2577-2585
This publication was selected for the R.C. Purdy award by the American Ceramic Society, nominated as the best contribution to technical ceramic literature of the year.

X Münch, B., Gasser, P., Flatt, R. & Holzer, L., 2006. FIB-Nanotomography of particulate systems - part II: particle recognition and effect of boundary truncation. Journal of the American Ceramic Society, 89(8): 2586-2595.

X Gruskovnjak, A., Lothenbach, B., Figi, R. & Holzer, L., 2006. Hydration of alkali-activated-slag - Part I: Comparison with OPC. Advances in Cement Research, 18(3): 119-128.

X Jenni, A., Zurbriggen, R., Holzer, L. & Herwegh, M., 2006. Changes of microstructures and physical properties in polymer-modified mortars during wet storage. Cement and Concrete Research, 36, 79-90.

X Leemann, A., Münch, B., Gasser, P. and Holzer, L., 2006. The influence of compaction on the interfacial transition zone and permeability. Cement and Concrete Research, 36: 1425-1433.

Holzer, L., Gasser, P. and Muench, B. 2006. Quantification of capillary porosity and Hadley grains in cement paste using FIB-nanotomography. In: M.S. Konsta-Gdoutos (Editor): Measuring, Monitoring and Modeling Concrete Properties. Springer, Dordrecht, NL, pp. 509-516.

Holzer, L., Muench, B., Leemann, A. and Gasser, P., 11.-13.9.2006. Quantification of capillary porosity in cement paste using high resolution 3D-microscopy: potential and limitations of FIB-nanotomography. In: I. Marchand (Editor), Advances in Concrete through Science and Engineering - RILEM Symposium, Quebec.

Münch, B., Gasser, P. and Holzer, L., 2006b. Simulation of Drying Shrinkage Based on High-Resolution 3D Pore Structure Analysis of Cement Paste. In: J. Marchand (Editor), International symposium on advances in concrete through science and engineering. RILEM, Quebec, CRIB.

Zingg, A.; Winnefeld, F.; Holzer, L.; Pakusch, J.; Becker, S.; Gauckler, L.: Kryo-Mikroskopie an frischen Zementpasten - erste Resultate, 16. Internationale Baustofftagung (ibausil), Weimar, Germany, September 20-23, 2006, Ed. F. A. Finger-Institut für Baustoffkunde der Bauhaus-Universität Weimar, Prof. Dr.-Ing. J. Stark, Bd. 1, 615-622.

Zingg, A.; Holzer, L.; Winnefeld, F., Gasser, P.; Pakusch, J.; Becker, S.; Gauckler, L.: Anwendung der Kryo-Rasterelektronenmikroskopie zur Untersuchung der Gefügeentwicklung während der Hydratation von frischen Zementpasten, 8. GDCh-Tagung Bauchemie, Karlsruhe, Germany, October 5-6, 2006, GDCh Monographie Nr. 36, 33-40.

Zingg, A.; Winnefeld, F.; Gasser, P.; Kaech, A.; Pakusch, J.; Becker, S.; Holzer, L.: Cryo-microscopy for fresh cement pastes: First results, 8th CANMET/ACI International Conference on Superplasticizers and other Admixtures in Concrete, Sorrento, Italy, October 29 - November 1, 2006, 329-343.

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Conference contributions and lectures 2006:

XX Holzer, L., 2006 invited lecture "Quantification of capillary pores and hadley grains in cement paste using FIB-nanotomography". European Conference of Fracture in Alexandroupolis, Greece, 3.-7.7.2006 (Special symposium on modeling of concrete properties; Session on quantitative image analysis for microstructural characterization of cement-based materials.) (Inv. by Prof. S. Shah)

XX Holzer, L., 2006. invited lecture Potential and limitations of microstructure analysis as a tool for the prediction of transport properties in cementitious materials. In: PSI, LES-Kolloquium (Inv. by Dr. Wieland, E.).

XX Holzer, L., 2006. invited lecture Quantitative microstructure analysis or porous and granular materials using focused ion beam nanotomography. In: ETHZ, Seminar in Metallphysik (Inv. by Prof. Kostorz, G.).

XX Holzer, L., 6.12.2006. invited lecture A 3D-view on the "life cycle" of cement based materials: microstructural changes from particulate suspensions to porous solids, Seminar of the Institute for Building Materials IfB, ETHZ, (Inv. by Prof. J. van Mier)

XX Holzer, L., 19.10.2006. invited lecture Tomography of cement pastes, tomography-Seminar Lafarge SA, Lyon, (Inv. by Dr. F. Thoué)

Holzer, L., Muench, B. and Gasser, P., 24.-25.4.2006. Cryo FIB-nanotomography for quantitative microstructure analysis of complex suspensions, 2nd European FIB/DualBeam userclub meeting, FEI, Eindhoven, NL.

Holzer, L., Muench, B., Leemann, A. and Gasser, P., 11.-13.9.2006. Quantification of capillary porosity in cement paste unsing high resolution 3D-microscopy: potential and limitations of FIB-nanotomography. Advances in Concrete through Science and Engineering - RILEM Symposium, Quebec.

Holzer, L., Gasser. Ph. and Muench, B. 26.-29.6.2006. Imaging the microstructure of complex suspensions In: 17nd ACBM/NIST Computer modelling workshop, Gaithersurgh, USA

Holzer, L.,. 29.9.2006. Kryo-FIB-Nanotomographie: Quantitative Beschreibung von Mikrostrukturen in frischen Zementpasten, In: BASF Seminar Polymere für die Baustoff-Industrie, Ludwigshaven, D

Holzer, L., 27.10.2006. Kryo-FIB-Nanotomographie für komplexe Suspensionen, In: FIB user group meeting, Empa, Dübendorf

Holzer, L., 16.11.2006. 3D-Mikroskopie zur Quantifizierung von Partikeln und Poren; Verständnis von Prozessen und Optimierung von Produkten, In: Holcim Schulung, Empa, Dübendorf

Holzer, L., 21.12.2006. Optimierung von Permeabilitätseigenschaften basierend auf 3D-Porenstrukturanalyse, In: Forschungskommission Cemsuisse, Zürich

Muench, B., Gasser, Ph., Holzer, L., 2006. Simulation of Drying Shrinkage Based on High-Resolution 3D Pore Structure Analysis of Cement Paste. In: 2nd int. Symp. Advances in Concrete through Science and engineering, CRIB, Quebec, Canada.

Muench, B., Gasser, Ph., Holzer, L., 26.-29.6.2006. 3D pore analysis and simulation of Drying Shrinkage In: 17nd ACBM/NIST Computer modelling workshop, Gaithersurgh, USA.

Zingg, A., Gasser, B., Winnefeld, F., Kaech, A., Pakusch, J., Becker, S., Holzer, L., 29.10.-1.11.2006, Cryo-microscopy for fresh cement pastes: first results, 8th CANMET/ACI International Conference on Superplaticizers and Other Chemical Admixtures in Concrete, Sorrento, Italy.

Zingg, A., Holzer, L., Winnefeld, F., Gasser, P., Pakusch, J., Becker, S., Gauckler, L., 5.-6.10.2006, Anwendung der Kryo-Rasterelektronenmikroskopie zur Untersuchung der Gefügeentwicklung während der Hydratation von frischen Zementpasten, GDCh-Jahrestagung der Fachgruppe Bauchemie, Karlsruhe, Deutschland

Zingg, A., Gasser, P., Winnefeld, F., Käch, A., Pakusch, J., Becker, S., Holzer, L., 20.-23.9.2006, Kryo-Mikroskopie an frischen Zementpasten: erste Resultate, 16. Internationale Baustofftagung IBAUSIL, Weimar, Deutschland

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Publications 2005:

X Jenni, A., Holzer, L., Zurbriggen, R. & Herwegh, M., 2005. Influence of polymers on microstructure and adhesive strength of cementitious tile adhesive mortars. Cement and Concrete Research, 35, 35-50.

X Leemann, A. & Holzer, L., 2005. Alkali-aggregate reaction - identifying reactive silicates in complex aggregates by ESEM observation of dissolution features. Cement and Concrete Composites, 27, 796-801

X Turkulin, H., Holzer, L., Richter, K. & Sell, J., 2005. Application of the ESEM technique in wood research - Part 1: Optimization of imaging parameters and working conditions. Wood and Fiber Science, 37(4), 552-564.

X Turkulin, H., Holzer, L., Richter, K. & Sell, J., 2005. Application of the ESEM technique in wood research - Part 2: Comparison of operational modes. Wood and Fiber Science, 37(4), 565-573.

Holzer, L., Gasser, P. & Münch, B., 2005a. Three Dimensional Analysis of the Pore-Network in Cement Pastes using FIB-Nanotomography. In: Cementitious Materials as model porous media: Nanostructure and Transport processes, pp. 71-76, EPFL, Monte Verita, Switzerland.

Holzer, L., Münch, B. & Gasser, P., 2005b. New approaches in microsctructure analysis of cementitious materials: From micro to nano, from 2D to 3D and from qualitative to quantitative characterization. In: 2nd int. Symp. on Nanotechnology in Construction NICOM2, pp. in press., RILEM, Bilbao (S).

Leemann, A., Münch, B., Gasser, P. & Holzer, L., 2005. Influence of compaction on the interfacial transition zone and the permeability of concrete. In: 10th Eurosem. Micr. appl. to Building Mat., pp. 67-68, Univ. Paisley, Paisley, Scottland.

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Conference contributions 2005:

XX Holzer, L. Quantitative microstructure analysis using FIB nanotomography. in D-MatL Kolloquium ETH Zürich. 2005: invited speaker.

XX Holzer, L. High resolution 3D-microscopy for quantitative microstructure analysis of cement based materials. Materials Science-Colloquium at Technical University Delft, Holland, 6.10.2005: invited speaker.

XX Holzer, L., P. Gasser, and B. Münch. High Resolution 3D-Analysis of the Cement Pore Structure. in Int. Conf. on Mechanisms and modelling of cement-waste interactions, Empa, Eawag, PSI . 2005. Meiringen, Switzerland CH. invited speaker

Holzer, L., P. Gasser, and B. Münch. Three Dimensional Analysis of the Pore-Network in Cement Pastes using FIB-Nanotomography. in Cementitious Materials as model porous media: Nanostructure and Transport processes. 2005. Monte Verita, Switzerland: EPFL.

Holzer, L., B. Münch, and P. Gasser. FIB-Nanotomography: Closing the Gap between Nano- and Microstructursal Imaging in 3D-Microscopy. in Microscopy Conference, 6. Dreiländertagung. 2005. Davos, Switzerland: SSOM. Poster

Münch, B., P. Gasser, and L. Holzer. Quantitative particle analysis based on FIB-nanotomography. in Microscopy Conference, 6. Dreiländertagung. 2005. Davos, Switzerland: SSOM. Poster

Zingg, A., Holzer, L., Winnefeld, F., Gasser, Ph., Pakusch, J., Becker, S., Gauckler. Gefüge- Charakterisierung der frühen Zementhydratation mit Hilfe der Cryo-Rasterelektronenmikroskopie. in 7. GDCH-Tagung Bauchemie. Berlin.

Zingg, A.; Holzer, L.; Winnefeld, F.; Gasser, P.; Pakusch, J.; Becker, S.; Gauckler, L.: Gefüge-Charakterisierung der frühen Zementhydratation mit Hilfe der Cryo-Rasterelektronenmikroskopie, 7. GDCh-Tagung Bauchemie, Berlin, Germany, September 29-30, 2005, GDCh-Monographie Nr. 35, 164-172.

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Publications 2004:

X Holzer, L., Indutnyi, F., Gasser, P., Münch, B. & Wegmann, M., 2004. 3D analysis of porous BaTiO3 ceramics using FIB nanotomography. Journal of Microscopy, 216(1), 84-95.

Gruskovnjak, A., Holzer, L., Lothenbach, B. & Winnefeld, F., 2004. Hydratationsmechanismen zementfreier alkaliaktivierter Bindemittelsysteme. In: 6. GDCH-Tagung Bauchemie.

Turkulin, H., Holzer, L. & Sell, J., 2004. Application of the ESEM technique in wood research, pp. 66, R+W report 115/51, EMPA Dübendorf.

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Conference contributions 2005:

Holzer, L. & Gasser, P., 2004. 3D analysis of porous materials using FIB nanotomography. In: European FIB Userclub meeting, 4.10.2004, Empa Dübendorf.

Zurbriggen, R., Jenni, A., Herwegh, M., Aberle, T. & Holzer, L., 2004. The adhesives modified by redispersible polymer powder - Microstructural evolution and resulting macro properties in both fresh and hardened states. In: China International Dry Mortar Production & Application Technique Seminar.

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Publications 2003:

X Kaegi, R. & Holzer, L., 2003. Transfer of a single particle for combined ESEM and TEM analysis. Atmospheric Environment, 37(31), 4353-4359.

X Jenni, A., Herwegh, M., Zurbriggen, R., Aeberle, T. & Holzer, L., 2003a. Quantitative microstructure analysis of polymer-modified mortars. Journal of Miroscopy, 212(2), 186-196.

XE Romer, M., Holzer, L. & Pfiffner, M., 2003b. Swiss tunnel structures: concrete damage by formation of Thaumasite. Cement and Concrete Composites, 25(8), 1111-1117.

Holzer, L., Kaufmann, J., Indutnyi, F., Gasser, P. & Münch, B., 2003c. The 3D pore structure of cement paste investigated with dual beam FIB (Focused Ion Beam). In: Beiträge der 5. Tagung Bauchemie GDCh-Monographie Band 27, pp. 202-207, Gesellschaft Deutscher Chemiker, München.

Holzer, L., Lothenbach, B. & Winnefeld, F., 2003d. Der Einfluss der mikrostrukturellen Entwicklung und der Porenlösungschemie auf das Erstarrungsverhalten von Zementpasten. In: Beiträge der 4. Tagung Bauchemie GDCh-Monographie Band 25, pp. 51-56, Gesellschaft Deutscher Chemiker, Weimar.

Holzer, L., Winnefeld, F., Lothenbach, B. & Zampini, D., 2003e. The Early Cement Hydration: A Multi-Method Approach. In: 11th International Congress on the Chemistry of Cement ICCC, pp. 236-248, Durban, RSA.

Zurbriggen, R., Jenni, A., Herwegh, M. & Holzer, L., 2003. Mikrostrukturentwicklung in polymer-modifizierten Fliesenklebern während der Applikation (Teil 1). In: Ibausil 15, pp. 347-355, F.A. Finger-Institut für Baustoffkunde, Weimar.

Jenni, A., Herwegh, M., Zurbriggen, R. & Holzer, L., 2003b. Quantitative microfabric analysis of polymer-modified high-porous mortars. In: 11th International Congress on the Chemistry of Cement ICCC, pp. 324-329, Durban, RSA.

Winnefeld, F. & Holzer, L., 2003. Monitoring early cement hydration by rheological measurements. In: 11th International Congress on the Chemistry of Cement ICCC, pp. 330-340, Durban, RSA.

Winnefeld, F., Lothenbach, B., Holzer, L., Plötze, M. & Ritz, G., 2003. Einfluss verschiedener Sulfatträger auf die Hydratation von Portlandzement. In: Ibausil 15, pp. 447-456, F.A. Finger-Institut für Baustoffkunde, Weimar.

Romer, M. & Holzer, L., 2003. What triggers concrete deterioration in aequeaous environments? In: 11th International Congress on the Chemistry of Cement ICCC, pp. 1432-1439, Durban, RSA.

Romer, M., Holzer, L. & Pfiffner, M., 2003a. Einflüsse von Bergwasser auf Tunnelbeton. In: Beiträge der 4. Tagung Bauchemie GDCh-Monographie Band 25, pp. 182-184, Gesellschaft Deutscher Chemiker, Weimar.

Lothenbach, B., Holzer, L. & Winnefeld, F., 2003. Thermodynamische Modellierung der Hydratation von OPC. In: Ibausil 15, pp. 457-466, F.A. Finger-Institut für Baustoffkunde, Weimar.

Jenni, A., Zurbriggen, R., Holzer, L. & Herwegh, M., 2003c. Entwicklung der Mikrostrukturen und physikalischen Eigenschaften von polymer-modifizierten Fliesenklebern während der Trocken- und Nasslagerung (Teil 2). In: Ibausil 15, pp. 357-366, F.A.-Finger Institut für Baustoffkunde, Weimar.

Leemann, A. & Holzer, L., 2003a. Alkali-aggregate reactivity - the importance of silicates. In: 9th Euroseminar on Microscopy applied to Building Materials (eds Stamatakis, E. & al., e.), pp. (digital proceedings on CD), Trondheim, Norway.

Leemann, A. & Holzer, L., 2003b. Silicates responsible for alkali-aggregate reactivity. In: Beiträge der 4. Tagung Bauchemie GDCh-Monographie Band 25, pp. 145-147, Gesellschaft Deutscher Chemiker, Weimar.

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Conference contributions 2003:

XX Holzer, L., Kaufmann, J., Indutnyi, F., Gasser, P. & Münch, B., 2003b. invited speaker The 3D pore structure of cement paste investigated with dual beam FIB (Focused Ion Beam). In: NSF-FHWA Workshop on Imaging and Simulation of Concrete Microstructure (Nano- to Macroscale) (eds Shah, S. & Corr, D.), pp. 49-54, ACBM, NW University, Evanston Illinois, USA.

Holzer, L., Kaufmann, J., Indutnyi, F., Gasser, P. & Münch, B., 2003a. The 3D pore structure of cement paste investigated with dual beam FIB (Focused Ion Beam). In: EUROMAT, Lausanne.

Yang, T., Holzer, L., Keller, B. & Magyari, E., 2003a. AFM Study of Water adsorption and transport in cement on a molecular sacle. In: TOP Nano 21, St. Gallen.

Yang, T., Keller, B., Magyari, E. & Holzer, L., 2003b. AFM study of the interaction of water with the internal surfaces of cement. In: Ph.D. symposium in builing physics, ETH Zürich.

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Publications and Conference contributions 2002:

Pfiffner, M. & Holzer, L., 2002. Schädigungsmechanismen der Betonkorrosion in Tunnelbauwerken. In: Forschungsauftrag ASTRA 1999/145 (53/99), pp. 9-33, ASTRA.

Kaegi, R. & Holzer, L., 2002. Separation of small environmental particles using nanomanipulators in the ESEM. In: AAAR Conference, American Association of Aerosol Research, Charlotte (North Carolina), USA.

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Publications 2001:

X Chavagnac, V., Kramers, J. D., Nägler, T. F. & Holzer, L., 2001. The behaviour of Nd and Pb isotopes during 2.0 Ga migmatization in paragneisses of the Central Zone of the Limpopo Belt (South Africa and Botswana). Precambrian Research, 112, 51-86.

X Kreissig, K., Holzer, L., Frei, R., Villa, I. M., Kramers, J. D., Kröner, A., Smit, C. A. & van Reenen, D. D., 2001a. Geochronology of the Hout River Shear Zone and the metamorphism in the Southern Marginal Zone of the Limpopo Belt, Southern Africa. Precambrian Research, 109, 145-174.

XE Beltzung, F., Wittmann, F. H. & Holzer, L., 2001. Influence of pore solution on drying shrinkage. In: Concreep-6, pp. 1-10, RILEM, MIT Massachuesetts Institute of Technology, Cambridge, USA.

Holzer, L., Jenni, A. & Zurbriggen, R., 2001a. Eine in-situ ESEM-Studie über mikrostrukturelle Veränderungen polymervergüteter Mörtel während der Wasserlagerung. In: GDCh-Monographie, Bd. 24, pp. 156-159, Gesellschaft Deutscher Chemiker GDCh, Frankfurt.

Romer, M., Holzer, L. & Pfiffner, M., 2001a. Interaction of Water with Concrete: Deterioration Mechanisms. In: CONSEC'01: Concrete under severe conditions: Environment & Loading, pp. 67-79, The University of British Columbia, Vancouver, Canada.

Jenni, A., Zurbriggen, R., Holzer, L. & Herwegh, M., 2001a. Polymerverfilmung in zementären Systemen. In: GDCh Monographie, Bd. 24, Würzburg, pp. 92-97, Gesellchaft Deutscher Chemiker GDCh, Frankfurt.

Jenni, A., Zurbriggen, R., Holzer, L. & Herwegh, M., 2001b. Sample preparation of polymer-modified high-porous mortars for quantitative microfabric analysis. In: 8th Euroseminar on Microscopy applied to building materials, pp. 571-578, Athenes, Greece.

Leemann, A. & Holzer, L., 2001. Influence of Mica on the Properties of Mortar and Concrete. In: 8th Euroseminar on Microscopy applied to Building Materials (ed al., S. e.), pp. 199-204, Athens, Greece.

Pfiffner, M. & Holzer, L., 2001. Schädigungsmechanismen der Zementsteinkorrosion: Auslaugung und Sulfatangriff. In: Symposium Bergwasserproblematik in Tunnelbauwerken (eds Romer, M. & Holzer, L.), pp. 9-33, EMPA Akademie, Dübendorf.

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Conference contributions 2001:

Holzer, L., Kaegi, R. & Klotz, U., 2001b. In-situ hydration experiments with ESEM. In: DACH Dreiländertagung für Elektronenmikroskopie, DGE, OEGEM, SSOM, Innsbruck, p.166.

Romer, M., Holzer, L. & Winnefeld, F., 2001b. Den Prozessen der Zementerhärtung auf der Spur. Schweizer Bauwirtschaft, 40, 17-19.

Zurbriggen, R., Jenni, A., Herwegh, M. & Holzer, L., 2001a. Analytical Characterisation of a Polymer Modified Mortar. In: ICI workshop, Cambridge.

Zurbriggen, R., Jenni, A., Herwegh, M. & Holzer, L., 2001b. Optical Microscopy on Polymer Film Formation in Cementitious Systems. In: ICI workshop, Cambridge.

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Conferences 2000:

Holzer, L., 2000a. 1 Jahr ESEM@EMPA: Rückblick, Diskussion von in-situ Experimenten, Ausblick: 2tes Meeting ESEM user-club DACH, Eindhoven, NL.

Holzer, L., 2000b. First ESEM studies at EMPA: Experiments with cement, wood and synthetics. In: 19emes Journees des Materiaux, EPFL, Lausanne.

Holzer, L. & Roulin, M., 2000. Microstructural investigations under changing temperature and humidity conditions with the Environmental Scanning Electron Microscope (ESEM). In: 2ème colloque franco-suisse: charactérisation des surfaces et revêtements industriels, EICN/CAFI, LeLocle.

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Publications and conference contributions 1999:

Holzer, L. & Romer, M., 1999. Corrosion of concrete: Assessing the mechanisms. In: 7th Euroseminar on Microscopy applied to building materials (eds Pietersen, H. S., Larbi, J. A. & Janssen, H. A.), pp. 67-79, TU Delft, the Netherlands.

Kaiser, J. P., Raschle, P., Holzer, L. & Romer, M., 1999. Microbial growth on Concrete in the Lötschberg Tunnel. In: International Conference on Biocorrosion, Sion, CH.

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Publications 1998:

X Holzer, L., Frei, R., Barton, J. M. & Kramers, J. D., 1998b. Unraveling the record of successive high grade metamorphic events in the Central Zone of the Limpopo Belt using Pb single phase dating of metamorphic minerals. Precambriam Research, 87, 98-115.

X Holzer, L., Barton, J. M., Paya, B. K. & Kramers, J. D., 1998a. Tectono-thermal history in the western part of the Limpopo Belt: Test of tectonic models and new perspectives. Journal of African Earth Sciences, 35, 314-326.

X Schaller, M., Studer, I., Steiner, O., Holzer, L., Herwegh, M. & Kramers, J. D., 1998. Exhumation of Limpopo Central Zone granulites and dextral continent-scale transcurrent movement at 2.0 Ga along the Palala shear zone, Transvaal. Precambriam Research, 91, 98-115.

PhD Thesis:
Holzer, L., 1998. The transpressive orogeny at 2 Ga in the Limpopo Belt, southern Africa. unpubl. Ph.D. Thesis, Universität Bern.

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Conference contributions 1998:

Holzer, L., Kreissig, K., Chavagnac, V., Schaller, M., Kramers, J. D. & Hänni, R., 1998c. The Limpopo Belt of southern Africa: Perspectives from an ancient orogen on "modern" ones. In: Geological dynamics of alpine type mountain belts - ancient and modern, pp. 17-18, Geol. Ver., Terra Nostra, Bern.

Holzer, L., Villa, I. & Kramers, J. D., 1998d. Are old orogens really slow? In: SMPG Tagung, pp. 116-117, SMPM, La chaux de fonds.

Kramers, J. D., Chavagnac, V., Holzer, L., Nägler, T. F. & Villa, I. M., 1998. Trace element partitioning can explain an apparent paradox of mineral chronometer memory. In: Geological dynamics of alpine type mountain belts - ancient and modern, pp. 58-59, Geol. Ver., Terra Nostra, Bern.

Passeraub, M., Kreissig, K., Holzer, L. & Kramers, J. D., 1998. Horizontal tectonics at >2.7 Ga in the Kaapvaal craton: The Rhenosterkoppies Greenstone Belt. In: SMPG Tagung, pp. 118-119, SMPM, La chaux de fonds.

Chavagnac, V., Holzer, L., Kreissig, K., Kramers, J. D. & Nägler, T. F., 1998. Evolution crustale de l'Archéen au Proterozoique en Afrique du Sud: Quand s'effectue la juxtaposition des cratons Kaapvaal et Zimbabwe? In: Goldschmidt conference, pp. 155-157, Cambridge Publications.

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Conference contributions 1997:$

Holzer, L., Kramers, J. D. & Blenkinsop, T. G., 1997a. Granulite facies metamorphism in the Limpopo central Zone: Evidence for a Proterozoic continental collision between the Kaapvaal and Zimbabwe cratons. In: EUG9, pp. 365, Terra Nova abstract supplement 1, Strassburg.

Holzer, L., Paya, B. K., Blenkinsop, T. G. & Kramers, J. D., 1997b. The shear zones bounding the Limpopo Central Zone revisited: evidence for a Proterozoic strike slip orogeny. In: Intraplate magmatism and tectonics of southern Africa, pp. 21-23, Geol. Soc. Zimbabwe, Harare.

Chavagnac, V., Nägler, T. F. & Holzer, L., 1997. Nd systematics in migmatites: Examples for "too old" leucosomes from the Limpopo Belt. In: EUG9, pp. 366, Terra Nova abstract supplement 1, Strassburg.

Kreissig, K. & Holzer, L., 1997. The Kaapvaal Craton - Southern Marginal Zone (Limpopo Belt) connection; implications from geochronological data, Pb Isotopes and REE patterns. In: EUG9, pp. 364, Terra Nova abstract supplement 1, Strassburg.

Passeraub, M., Wüest, T., Kreissig, K., Holzer, L. & Kramers, J. D., 1997. The Rhenosterkoppies Greenstone Belt, Transvaal, South Africa, and the tectonic relationship between the southern marginal zone of the Limpopo Belt and the Kaapvaal craton. In: EUG9, pp. 367, Terra Nova abstract supplement 1, Strassburg.

Schaller, M., Steiner, I., Studer, O., Holzer, L. & Kramers, J. D., 1997. Evidence for a 2.0 Ga exhumation of the granulite-facies Central Zone along the Palala shear zone, Limpopo Belt, southern Africa. In: EUG9, pp. 368, Terra Nova abstract supplement 1, Strassburg.

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Conference contributions 1996:

Nägler, T. F. & Holzer, L., 1996. What dominates the Nd and Pb characteristics of garnet? In: Goldschmidt conference, pp. 424, Cambridge Publications.

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Publications 1995:

X Holzer, L., Kamber, B., Kramers, J. D. & Frei, R., 1995. The tectono-metamorphic event at 2 Ga in the Limpopo Belt and the resetting behaviour of chronometers at high temperature. In: Proterozoic crustal and metallogenic evolution (ed McManus), pp. 129-140, Communs geol. Surv. Namibia.

MSc Thesis:
Holzer, L., 1995. The magmatic petrology of the Bulai Pluton and the tectono-metamorphic overprint at 2.0 Ga in the Central Zone of the Limpopo Belt, southern Africa. Unpubl. M.Sc. Thesis, Universität Bern.

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Conferences 1995:

Holzer, L. & Kamber, B., 1995. Reconstruction of a clockwise PTt-path: the 2.0 Ga event in the Limpopo Belt, southern Africa. In: EUG8, pp. 44, Terra Nova abstract supplement 1, Strassburg.

Holzer, L., Kamber, B. & Kramers, J. D., 1995. The dissection of a supposedley Archean example of continent-continent collision: The Limpopo Belt of southern Africa. In: SMPG Tagung, pp. 300-301, SMPM, Aarau.

Nägler, T. F., Holzer, L. & Frei, R., 1995. Nd and Pb in monazite inclusions within polymetamorphic garnets. In: AGU fall meeting, pp. 713, EOS, San Francisco.

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Publication 1994:

X Barton, J. M., Holzer, L., Kamber, B., Doig, R., Kramers, J. D. & Nyfeler, D., 1994. Discrete metamorphic events in the Limpopo Belt, southern Africa: Implications for the application of PT-paths in complex metamorphic terrains. Geology, 22, 1035-1038.

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