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Lecturer STI STI-SMX SMX-ENS

Ludger Weber office(s): MXD120 phone(s): [+41 21 69] 32934 MISSION I'm leading a group active in research of liquid metal infiltration processing and related phenomena, e.g. wetting of ceramic surfaces by metals, permeability of porous preforms. Beside fundamental aspects of processing the group is also involved in the development of new materials for thermal management, in particular diamond-filled metal matrix composites. In particular we want to understand the link between matrix composition and heat transfer at the interface between metal and diamond as well as the fundamental aspects of the heat transfer at the interface between a metal and a dielectric. BIOGRAPHY born in Wettingen (AG), my family moved, when I was 2, to Stein am Rhein (SH), one of the most beautiful towns of Switzerland, where I passed my childhood and adolescence. After having earned the Matura (Typus A) from Kantonsschule Schaffhausen, I enrolled for studies of Materials Science at ETH Zurich. I lived in Zurich for seven years, i.e during my studies and while I was a Ph.D. candidate. During that period I met my wife Nathalie with whom I got married in 1995. After my thesis we moved to Lausanne were I started an academic career at EPFL. I have currently three children born in 2002, 2004, and 2006. Education Dr. sc. techn., Reliability of solder joints in microelectronic packages, Prof. Alessandro Birolini (retired), Eidgenössische Technische Hochschule, Zürich, 6/1994-8/1997 Dipl. Werkst. ing. ETH, Materials science, Eidgenössische Technische Hochschule, Zürich, 10/1989-4/1994 Professional course senior scientist/ group leader, Laboratory for Mechanical Metallurgy, EPF Lausanne, since 1/2002 First assistant, Laboratory for Mechanical Metallurgy, EPF Lausanne, 1/2000-12/2001 Lecturer, EPF Lausanne, since 3/1999 Post-Doctoral fellow, Laboratory for Mechanical Metallurgy, EPF Lausanne, 10/1997-12/1999 Ph.D. candidate, Reliability Laboratory, ETH Zurich, 6/1994-8/1997 MAIN PUBLICATIONS M. Kida, L. Weber, C. Monachon, and A. Mortensen. Thermal conductivity and interfacial conductance of AlN particle reinforced metal matrix composites. Journal of Applied Physics, 109(6):064907, 2011. [ DOI | Details ] M. Vetterli, R. Tavangar, L. Weber, and A. Kelly. Influence of the elastic properties of the phases on the coefficient of thermal expansion of a metal matrix composite. Scripta Materialia, 64(2):153-156, 2011. [ DOI | Details ] G. Roudini, R. Tavangar, L. Weber, and A. Mortensen. Influence of reinforcement contiguity on the thermal expansion of alumina particle reinforced aluminium composites. International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde), 101(09):1113-1120, 2010. [ DOI | Details ] L. Weber, G. Sinicco, and J. M. Molina. Influence of processing route on electrical and thermal conductivity of Al/SiC composites with bimodal particle distribution. Journal of Materials Science, 45(8):2203-2209, 2010. [ DOI | Details ] F. Diologent, E. Combaz, V. Laporte, R. Goodall, L. Weber, F. Duc, and A. Mortensen. Processing of Ag-Cu alloy foam by the replication process. Scripta Materialia, 61:351-354, 2009. [ DOI | Details ] K. Weidenmann, R. Tavangar, and L. Weber. Mechanical behaviour of diamond reinforced metals. Materials Science and Engineering A, 523(1-2):226-234, 2009. [ DOI | Details | Link ] K. Weidenmann, R. Tavangar, and L. Weber. Rigidity of diamond reinforced metals featuring high particle contents. Composites Science and Technology, 69(10):1660-1666, 2009. [ DOI | Details ] F. Diologent, E. Combaz, V. Laporte, R. Goodall, L. Weber, F. Duc, and A. Mortensen. Processing of Ag-Cu alloy foam by the replication process. Scripta Materialia, 61:351-354, 2009. [ DOI | Details ] A. Rossoll, B. Moser, L. Weber, and A. Mortensen. In situ flow stress of pure aluminium constrained by tightly packed alumina fibres. Acta Materialia, 57(6):1795-1812, 2009. [ DOI | Details ] L. Weber and R. Tavangar. Diamond-based Metal Matrix Composites for thermal Management - Potential and Limits. Advanced Materials Research, 59:111-115, 2009. keynote lecture. [ DOI | Details | Link ] J.-M. Molina, M. Rhême, J. Carron, and L. Weber. Thermal conductivity of aluminum matrix composites reinforced with mixtures of diamond and SiC particles. Scripta Materialia, 58:393-396, 2008. [ DOI | Details ] A. Rossoll, C. Otto, B. Moser, L. Weber, A. Wanner, and A. Mortensen. Measurement of damage evolution in continuous ceramic fibre-reinforced metals by acoustic emission. Scripta Materialia, 59(8):842-845, 2008. [ DOI | Details | Link ] R. Mueller, A. Rossoll, L. Weber, M. A. M. Bourke, D. C. Dunand, and A. Mortensen. Tensile flow stress of ceramic particle-reinforced metal in the presence of particle cracking. Acta Materialia, 56(16):4402-4416, 2008. [ DOI | Details | Link ] J. M. Molina, J. Narciso, L. Weber, A. Mortensen, and E. Louis. Thermal conductivity of Al-SiC composites with monomodal and bimodal particle size distribution. Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing, 480(1-2):483-488, 2008. [ DOI | Details | Link ] J. M. Molina, M. Bahraini, L. Weber, and A. Mortensen. Direct measurement of drainage curves in infiltration of SiC particle preforms: influence of interfacial reactivity. Journal Of Materials Science, 43(15):5061-5067, 2008. [ DOI | Details | Link ] M. Kida, M. Bahraini, J. M. Molina, L. Weber, and A. Mortensen. High-temperature wettability of aluminum nitride during liquid metal infiltration. Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing, 495(1-2):197-202, 2008. [ DOI | Details | Link ] M. Bahraini, J. M. Molina, L. Weber, and A. Mortensen. Direct measurement of drainage curves in infiltration of SiC particle preforms. Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing, 495(1-2):203-207, 2008. [ DOI | Details | Link ] J. M. Molina, A. RodrÌguez-Guerrero, M. Bahraini, L. Weber, J. Narciso, F. RodrÌguez-Reinoso, E. Louis, and A. Mortensen. Infiltration of graphite preforms with Al-Si eutectic alloy and mercury. Scripta Materialia, 56(11):991, 2007. [ DOI | Details | Link ] L. Weber and R. Tavangar. On the influence of active element content on the thermal conductivity and thermal expansion of Cu-X (X = Cr, B) diamond composites. Scripta Materialia, 57(11):988-991, 2007. [ DOI | Details ] R. Tavangar, J. M. Molina, and L. Weber. Assessing predictive schemes for thermal conductivity against diamond-reinforced silver matrix composites at intermediate phase contrast. Scripta Materialia, 56(5):357-360, 2007. [ DOI | Details ] J. Narciso, L. Weber, J.M. Molina, A. Mortensen, and E. Louis. Reactivity and thermal behaviour ofCu-Si/SiC composites: effects of SiC oxidation. Materials Science and Technology, 22(12):1464-1468, 2006. [ DOI | Details ] R. Goodall, L. Weber, and A. Mortensen. The electrical conductivity of microcellular metals. Journal Of Applied Physics, 100(4), 2006. 0021-8979 044912. [ DOI | Details ] M. Bahraini, J. M. Molina, M. Kida, L. Weber, J. Narciso, and A. Mortensen. Measuring and tailoring capillary forces during liquid metal infiltration. Current Opinion In Solid State & Materials Science, 9(4-5):196-201, 2005. 1359-0286. [ DOI | Details ] M. Bahraini, L. Weber, J. Narciso, and A. Mortensen. Wetting in infiltration of alumina particle preforms with molten copper. Journal Of Materials Science, 40(9-10):2487-2491, 2005. Swiss Fed Inst Technol, EPFL, Lab Mech Met, Inst Mat, CH-1015 Lausanne, Switzerland. Univ Alicante, Dept Inorgan Chem, Alicante, Spain. [ DOI | Details ] B. Moser, L. Weber, and A. Mortensen. Damage accumulation during cyclic loading of a continuous alumina fibre reinforced aluminium composite. Scripta Materialia, 53(10):1111-1115, 2005. Empa Mat Sci & Technol, Lab Mat Technol Thun, Thun, Switzerland. EPFL, Lab Mech Met, CH-1015 Lausanne, Switzerland. [ DOI | Details | Full Text ] R. Tavangar, L. Weber, and A. Mortensen. Damage evolution in Saffil alumina short-fibre reinforced aluminium during tensile testing. Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing, 395(1-2):27-34, 2005. Swiss Fed Inst Technol, Lab Mech Met, CH-1015 Lausanne, Switzerland. Sharif Univ Technol, Mat Res Lab, Tehran, Iran. [ DOI | Details | Full Text ] L. Weber. Non-conducting inclusions in a conducting matrix: Influence of inclusion size on electrical conductivity. Acta Materialia, 53(7):1945, 2005. Ecl. Polytech. Federale De Lausanne, Laboratory of Mechanical Metallurgy, STI-IMX-LMM Station 12, CH-1015 Lausanne, Switzerland. [ DOI | Details | Link ] L. Weber, R. Tavangar, and A. Mortensen. Ductility of Saffil(TM) short fibre reinforced metals. Scripta Materialia, 53(1):17-21, 2005. Ecole Polytech Fed Lausanne, Lab Mech Met, CH-1015 Lausanne, Switzerland. Sharif Univ Technol, Dept Mat Sci & Engn, Tehran, Iran. [ DOI | Details ] A. Miserez, R. Mu?ller, A. Rossoll, L. Weber, and A. Mortensen. Particle reinforced metals of high ceramic content. Materials Science and Engineering A, 387-389(1-2 SPEC. ISS.):822, 2004. Swiss Fed. Inst. Technol. Lausanne, EPFL, CH-1015 Lausanne, Switzerland Materials Department, College of Engineering, University of California, Santa Barbara, CA, United States 09215093 (ISSN) DOI: 10.1016/j.msea.2004.05.054. [ DOI | Details | Link ] B. Moser, A. Rossoll, L. Weber, O. Beffort, and A. Mortensen. Damage evolution of Nextel 610? alumina fibre reinforced aluminium. Acta Materialia, 52(3):573, 2004. Laboratory for Mechanical Metallurgy, Swiss Fed. Institute of Technology, EPFL, Lausanne, Switzerland Section Materials Technology, Swiss Fed. Lab. for Mat. Test./Res., EMPA, Thun, Switzerland Suresh Group, DMSE, Massachusetts Inst. of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States 13596454 (ISSN). [ DOI | Details | Full Text | Link ] R. Tavangar, S. Nategh, and L. Weber. Tensile behaviour and ductility of 10 vol.-% saffil short fibre reinforced aluminium. Materials Science and Technology, 20(12):1645, 2004. Materials Research Laboratory, Sharif University, Teheran, Iran Laboratory for Mechanical Metallurgy, Swiss Fed. Institute of Technology, Lausanne, Switzerland. [ DOI | Details | Link ] M. Kouzeli, L. Weber, C. San Marchi, and A. Mortensen. Corrigendum on the tensile behaviour of infiltrated alumina particle reinforced aluminium composites. Acta Materialia, 51(20):6493, 2003. Laboratory for Mechanical Metallurgy, Ecl. Polytech. Fed. di Lausanne, 1015 Lausanne, Switzerland Sandia National Laboratories, Livermore, CA 94551, United States 13596454 (ISSN) DOI: 10.1016/S1359-6454(03)00384-7. [ DOI | Details | Full Text | Link ] B. Moser, A. Rossoll, L. Weber, O. Beffort, and A. Mortensen. Transmitted light microscopy of a fibre reinforced metal. Journal of Microscopy, 209(1):8-12, 2003. Laboratory for Mechanical Metallurgy, Swiss Fed. Inst. of Technology EPFL, Lausanne, Switzerland Section Materials Technology, Swiss Fed. Lab. for Mat. Test./Res., EMPA, Thun, Switzerland LEXCOM, Massachusetts Inst. of Technol. MIT, Cambridge, MA, United States 0022-2720 (ISSN) Part 1. [ DOI | Details | Full Text | Link ] B. Moser, L. Weber, A. Rossoll, and A. Mortensen. The influence of non-linear elasticity on the determination of Weibull parameters using the fibre bundle tensile test. Composites Part A: Applied Science and Manufacturing, 34(9):907, 2003. Laboratory for Mechanical Metallurgy, Swiss Fed. Institute of Technology, EPFL, Lausanne, Switzerland Swiss Fed. Lab. for Mat. Test./Res., EMPA, Thun, Switzerland Suresh Group, Massachusetts Inst. of Technology, Cambridge, MA 02139, United States 1359835X (ISSN). [ DOI | Details | Full Text | Link ] L. Weber, J. Dorn, and A. Mortensen. On the electrical conductivity of metal matrix composites containing high volume fractions of non-conducting inclusions. Acta Materialia, 51(11):3199-3211, 2003. Swiss Fed Inst Technol, Lab Mech Met, CH-1015 Lausanne, Switzerland. [ DOI | Details ] L. Weber, C. Fischer, and A. Mortensen. On the influence of the shape of randomly oriented, nonconducting inclusions in a conducting matrix on the effective electrical conductivity. Acta Materialia, 51(2):495-505, 2003. Swiss Fed Inst Technol, EPFL, Lab Mech Met, CH-1015 Lausanne, Switzerland. [ DOI | Details ] L. Weber. Equilibrium solid solubility of silicon in silver. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 33(4):1145, 2002. Laboratory for Mechanical Metallurgy, Swiss Fed. Institute of Technology, CH-1015 Lausanne, Switzerland. [ DOI | Details | Link ] M. Kouzeli, L. Weber, C. San Marchi, and A. Mortensen. Influence of damage on the tensile behaviour of pure aluminium reinforced with ?40 vol. pct alumina particles. Acta Materialia, 49(18):3699, 2001. Laboratory for Mechanical Metallurgy, Ecole Polytech. Federale de Lausanne, 1015 Lausanne, Switzerland 13596454 (ISSN) DOI: 10.1016/S1359-6454(01)00279-8. [ DOI | Details | Full Text | Link ] M. Kouzeli, L. Weber, C. San Marchi, and A. Mortensen. Quantification of microdamage phenomena during tensile straining of high volume fraction particle reinforced aluminum. Acta Materialia, 49(3):497-505, 2001. Laboratory for Mechanical Metallurgy, Swiss Fed. Inst. of Technology, 1015, Lausanne, Switzerland 1359-6454 (ISSN). [ DOI | Details | Full Text | Link ] B. Moser, A. Rossoll, L. Weber, O. Beffort, and A. Mortensen. Nextel? 610 alumina fibre reinforced aluminium: Influence of matrix and process on flow stress. Composites - Part A: Applied Science and Manufacturing, 32(8):1067, 2001. Laboratory for Mechanical Metallurgy, Swiss Fed. Institute of Technology, 1015 Lausanne, Switzerland 1359835X (ISSN). [ DOI | Details | Link ] R. A. Perren, T. A. Suter, P. J. Uggowitzer, L. Weber, R. Magdowski, H. Bohni, and M. O. Speidel. Corrosion resistance of super duplex stainless steels in chloride ion containing environments: Investigations by means of a new microelectrochemical method. i. precipitation-free states. Corrosion Science, 43(4):707, 2001. Institute of Metallurgy, Swiss Fed. Institute of Technology, ETH, CH-8092 Zurich, Switzerland Inst. of Mat. Chem. and Corrosion, Swiss Fed. Institute of Technology, ETH, CH-8092 Zurich, Switzerland Laboratory of Mechanical Metallurgy, Swiss Fed. Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland. [ DOI | Details | Link ] T. J. Grant, L. Weber, and A. Mortensen. Plasticity in Chevron-notch fracture toughness testing. Engineering Fracture Mechanics, 67(3):263, 2000. Lab. of Mechanical Metallurgy, Department of Materials, Swiss Federal Institute of Tech., MX-D Ecublens, CH-1015 Lausanne, Switzerland 00137944 (ISSN) CODEN: EFMEA; DOI: 10.1016/S0013-7944(00)00061-8. [ DOI | Details | Full Text | Link ] L. Weber, P. Canalis-Nieto, A. Rossoll, and A. Mortensen. Fracture strength of alumina fiber reinforced aluminum wire with and without a torsional pre-strain. Acta Materialia, 48(12):3235, 2000. Laboratory for Mechanical Metallurgy, Swiss Fed. Inst. Technol. L., Lausanne, Switzerland 13596454 (ISSN) CODEN: 00220; DOI: 10.1016/S1359-6454(00)00112-9. [ DOI | Details | Link ] L. Weber, B. Moser, H. U. Ku?nzi, and A. Mortensen. Swift and inverse swift effect in alumina fiber reinforced aluminum wires. Acta Materialia, 48(10):2451, 2000. Laboratory for Mechanical Metallurgy, Swiss Fed. Inst. Technol. L., Lausanne, Switzerland 13596454 (ISSN) CODEN: 00220; DOI: 10.1016/S1359-6454(00)00080-X. [ DOI | Details | Link ] L. Weber, M. Kouzeli, C. San Marchi, and A. Mortensen. On the use of considere's criterion in tensile testing of materials which accumulate internal damage. Scripta Materialia, 41(5):549, 1999. Laboratory for Mechanical Metallurgy, Swiss Inst. Technol. Lausanne, C., Lausanne, Switzerland 13596462 (ISSN) CODEN: SCMAF; DOI: 10.1016/S1359-6462(99)00159-1. [ DOI | Details | Link ] L. Weber and P. J. Uggowitzer. Partitioning of chromium and molybdenum in super duplex stainless steels with respect to nitrogen and nickel content. Materials Science and Engineering A, 242(1-2):222, 1998. Reliability Laboratory, Swiss Fed. Institute of Technology, ETH, CH 8092 Zurich, Switzerland Institute of Metallurgy, Swiss Fed. Institute of Technology, ETH, CH 8092 Zurich, Switzerland. [ DOI | Details | Link ] G. Grossmann and L. Weber. Metallurgical considerations for accelerated testing of soft solder joints. IEEE transactions on components, packaging and manufacturing technology. Part C. Manufacturing, 20(3):213, 1997. Swiss Federal Inst of Technology, ETHZ, Zurich, Switzerland. [ DOI | Details | Link ] Honours Willi Studer (1994) Silver medal of ETH (1994) ASM Outstanding Young Member award (1994) R+R Haenny price (2003) DGM Georg Sachs medal (2008) FEMS Materials Science and Technology Award (2009)

Teaching Materials Science and Engineering [en] (SMX) Characterization Methods in Materials Science [en] Materials Laboratory Work [fr] (SGC) Metals and alloys [fr] (SGM) Technology and practice of materials [fr] (SMX) Phd Students Monachon Christian Professional activities Editorial board member of Emerging materials research (ICE publishing) http://www.icevirtuallibrary.com/content/serial/emr Working group responsible for functional composites in the commission "metal matrix composites" of Deutsche Gesellschaft für Materialkunde