Ludger Weber
Mission
Je suis responsable d'un group de recherche dans le domaine des composites à matrice métallique à des fins d'utilisation comme corps de refroidissement. Depuis quelque temps nous dévelopons des composites contenant du diamant synthétique pour profiter du faible coefficient de dilatation thermique et de la conductibilité thermique exceptionnelle de ce dernier. Bien que le point de départ de nos recherches soit une application, nous menons surtout des recherches fondamentales sur les techniques et théories à la base du succès d'un tel composite.
Depuis quelques années nous poursuivons aussi une activité de recherche dan s le domaine des métaux précieux ultra-durs en collaboration avec l'industrie locale.
AE et Conseil de Fac
Je me suis porté candidat pour l'assemblée d'école et le Conseil de Faculté du STI parce que je ne veux pas rester dans la position de celui qui critique les évolutions au niveau de l'école et de la faculté mais je veux m'engager pour trouver de bonnes solutions à des problèmes qui sont souvent complexes. L'AE et le conseil de faculté me semblent des lieux idéaux pour debattre avec d'autres personnes engagées, notamment des membres d'autres corps qui ont une sensibilité et des préoccupations différentes des miennes.
En 2004 et ensuite en début 2008, j'ai hérité une place à l'assemblée d'école en tant que représentant du CI étant le premier sur la liste des suppléants, depuis, j'ai été réelu à deux reprises. Durant mon mandat à l'AE, je me suis aperçu que j'aimais bien me pencher sur des dossier de textes légaux qui ont une portée sur notre vie sur le campus. C'est pour cela que j'aimerais continuer à apporter mon grain de sel dans les discussions et à défendre l'intérêt du corps intermédiaire au sein des institutions paritaires. Depuis que j'ai été nommé MER j'ai passé dans le corps des enseignants. Bien que mon poste ne me confronte avec toutes les difficultés d'un chef d'unité je pense d'être capable de défendre le point de vu de mes collègues professeurs.
Biographie
Né en suisse allémannique j'ai fait mes études à l'EPFZ pour, après mon doctorat en 1997, rejoindre le laboratoire de Métallurgie Mécanique du Prof. Mortensen à l'EPFL, d'abord comme Post-Doc, ensuite comme premier assistant et chargé de cours, fonction que je remplie encore aujourd'hui.
Je suis marié et père de trois enfants nés en 2002, 2004, et 2006. Depuis 2004, nous sommes installés au Mont sur Lausanne.
Parcours professionnel
| MER/senior scientist | Laboratory for Mechanical Metallurgy | EPF Lausanne, since 11/2014 | |
| 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 |
Publications
Infoscience
M. Kida; L. Weber; C. Monachon; A. Mortensen : Thermal conductivity and interfacial conductance of AlN particle reinforced metal matrix composites; Journal of Applied Physics. 2011. DOI : 10.1063/1.3553870.
M. Vetterli; R. Tavangar; L. Weber; A. Kelly : Influence of the elastic properties of the phases on the coefficient of thermal expansion of a metal matrix composite; Scripta Materialia. 2011. DOI : 10.1016/j.scriptamat.2010.09.032.
G. Roudini; R. Tavangar; L. Weber; 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). 2010. DOI : 10.3139/146.110388.
L. Weber; G. Sinicco; J. M. Molina : Influence of processing route on electrical and thermal conductivity of Al/SiC composites with bimodal particle distribution; Journal of Materials Science. 2010. DOI : 10.1007/s10853-009-4060-0.
K. Weidenmann; R. Tavangar; L. Weber : Mechanical behaviour of diamond reinforced metals; Materials Science and Engineering A. 2009. DOI : 10.1016/j.msea.2009.05.069.
K. Weidenmann; R. Tavangar; L. Weber : Rigidity of diamond reinforced metals featuring high particle contents; Composites Science and Technology. 2009. DOI : 10.1016/j.compscitech.2009.03.016.
F. Diologent; E. Combaz; V. Laporte; R. Goodall; L. Weber et al. : Processing of Ag-Cu alloy foam by the replication process; Scripta Materialia. 2009. DOI : 10.1016/j.scriptamat.2009.04.024.
A. Rossoll; B. Moser; L. Weber; A. Mortensen : In situ flow stress of pure aluminium constrained by tightly packed alumina fibres; Acta Materialia. 2009. DOI : 10.1016/j.actamat.2008.12.024.
L. Weber; R. Tavangar : Diamond-based Metal Matrix Composites for thermal Management - Potential and Limits; Advanced Materials Research. 2009. DOI : 10.4028/www.scientific.net/AMR.59.111.
J.-M. Molina; M. Rhême; J. Carron; L. Weber : Thermal conductivity of aluminum matrix composites reinforced with mixtures of diamond and SiC particles; Scripta Materialia. 2008. DOI : 10.1016/j.scriptamat.2007.10.020.
A. Rossoll; C. Otto; B. Moser; L. Weber; A. Wanner et al. : Measurement of damage evolution in continuous ceramic fibre-reinforced metals by acoustic emission; Scripta Materialia. 2008. DOI : 10.1016/j.scriptamat.2008.06.027.
R. Mueller; A. Rossoll; L. Weber; M. A. M. Bourke; D. C. Dunand et al. : Tensile flow stress of ceramic particle-reinforced metal in the presence of particle cracking; Acta Materialia. 2008. DOI : 10.1016/j.actamat.2008.05.004.
J. M. Molina; J. Narciso; L. Weber; A. Mortensen; 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. 2008. DOI : 10.1016/j.msea.2007.07.026.
J. M. Molina; M. Bahraini; L. Weber; A. Mortensen : Direct measurement of drainage curves in infiltration of SiC particle preforms: influence of interfacial reactivity; Journal Of Materials Science. 2008. DOI : 10.1007/s10853-008-2670-6.
M. Kida; M. Bahraini; J. M. Molina; L. Weber; A. Mortensen : High-temperature wettability of aluminum nitride during liquid metal infiltration; Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2008. DOI : 10.1016/j.msea.2007.12.050.
M. Bahraini; J. M. Molina; L. Weber; A. Mortensen : Direct measurement of drainage curves in infiltration of SiC particle preforms; Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. 2008. DOI : 10.1016/j.msea.2008.01.074.
J. M. Molina; A. RodrÌguez-Guerrero; M. Bahraini; L. Weber; J. Narciso et al. : Infiltration of graphite preforms with Al-Si eutectic alloy and mercury; Scripta Materialia. 2007. DOI : 10.1016/j.scriptamat.2007.01.042.
L. Weber; 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. 2007. DOI : 10.1016/j.scriptamat.2007.08.007.
R. Tavangar; J. M. Molina; L. Weber : Assessing predictive schemes for thermal conductivity against diamond-reinforced silver matrix composites at intermediate phase contrast; Scripta Materialia. 2007. DOI : 10.1016/j.scriptamat.2006.11.008.
J. Narciso; L. Weber; J. Molina; A. Mortensen; E. Louis : Reactivity and thermal behaviour ofCu-Si/SiC composites: effects of SiC oxidation; Materials Science and Technology. 2006. DOI : 10.1179/174328406X131000.
R. Goodall; L. Weber; A. Mortensen : The electrical conductivity of microcellular metals; Journal Of Applied Physics. 2006. DOI : 10.1063/1.2335672.
M. Bahraini; J. M. Molina; M. Kida; L. Weber; J. Narciso et al. : Measuring and tailoring capillary forces during liquid metal infiltration; Current Opinion In Solid State & Materials Science. 2005. DOI : 10.1016/j.cossms.2006.02.007.
M. Bahraini; L. Weber; J. Narciso; A. Mortensen : Wetting in infiltration of alumina particle preforms with molten copper; Journal Of Materials Science. 2005. DOI : 10.1007/s10853-005-1980-1.
B. Moser; L. Weber; A. Mortensen : Damage accumulation during cyclic loading of a continuous alumina fibre reinforced aluminium composite; Scripta Materialia. 2005. DOI : 10.1016/j.scriptamat.2005.07.024.
R. Tavangar; L. Weber; 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. 2005.
L. Weber : Non-conducting inclusions in a conducting matrix: Influence of inclusion size on electrical conductivity; Acta Materialia. 2005.
L. Weber; R. Tavangar; A. Mortensen : Ductility of Saffil(TM) short fibre reinforced metals; Scripta Materialia. 2005. DOI : 10.1016/j.scriptamat.2005.03.027.
A. Miserez; R. Mu?ller; A. Rossoll; L. Weber; A. Mortensen : Particle reinforced metals of high ceramic content; Materials Science and Engineering A. 2004. DOI : 10.1016/j.msea.2004.05.054.
B. Moser; A. Rossoll; L. Weber; O. Beffort; A. Mortensen : Damage evolution of Nextel 610? alumina fibre reinforced aluminium; Acta Materialia. 2004. DOI : 10.1016/j.actamat.2003.09.040.
R. Tavangar; S. Nategh; L. Weber : Tensile behaviour and ductility of 10 vol.-% Saffil short fibre reinforced aluminium; Materials Science and Technology. 2004. DOI : 10.1179/026708304225012215.
M. Kouzeli; L. Weber; C. San Marchi; A. Mortensen : Corrigendum on the tensile behaviour of infiltrated alumina particle reinforced aluminium composites; Acta Materialia. 2003. DOI : 10.1016/S1359-6454(03)00431-2.
B. Moser; A. Rossoll; L. Weber; O. Beffort; A. Mortensen : Transmitted light microscopy of a fibre reinforced metal; Journal of Microscopy. 2003. DOI : 10.1046/j.1365-2818.2003.01097.x.
B. Moser; L. Weber; A. Rossoll; 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. 2003. DOI : 10.1016/S1359-835X(03)00134-9.
L. Weber; J. Dorn; A. Mortensen : On the electrical conductivity of metal matrix composites containing high volume fractions of non-conducting inclusions; Acta Materialia. 2003.
L. Weber; C. Fischer; A. Mortensen : On the influence of the shape of randomly oriented, nonconducting inclusions in a conducting matrix on the effective electrical conductivity; Acta Materialia. 2003.
L. Weber : Equilibrium solid solubility of silicon in silver; Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 2002.
M. Kouzeli; L. Weber; C. San Marchi; A. Mortensen : Influence of damage on the tensile behaviour of pure aluminium reinforced with ?40 vol. pct alumina particles; Acta Materialia. 2001. DOI : 10.1016/S1359-6454(01)00279-8.
M. Kouzeli; L. Weber; C. San Marchi; A. Mortensen : Quantification of microdamage phenomena during tensile straining of high volume fraction particle reinforced aluminum; Acta Materialia. 2001. DOI : 10.1016/S1359-6454(00)00334-7.
B. Moser; A. Rossoll; L. Weber; O. Beffort; A. Mortensen : Nextel? 610 alumina fibre reinforced aluminium: Influence of matrix and process on flow stress; Composites - Part A: Applied Science and Manufacturing. 2001.
R. A. Perren; T. A. Suter; P. J. Uggowitzer; L. Weber; R. Magdowski et al. : 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. 2001.
T. J. Grant; L. Weber; A. Mortensen : Plasticity in Chevron-notch fracture toughness testing; Engineering Fracture Mechanics. 2000. DOI : 10.1016/S0013-7944(00)00061-8.
L. Weber; P. Canalis-Nieto; A. Rossoll; A. Mortensen : Fracture strength of alumina fiber reinforced aluminum wire with and without a torsional pre-strain; Acta Materialia. 2000. DOI : 10.1016/S1359-6454(00)00112-9.
L. Weber; B. Moser; H. U. Künzi; A. Mortensen : Swift and inverse swift effect in alumina fiber reinforced aluminum wires; Acta Materialia. 2000. DOI : 10.1016/S1359-6454(00)00080-X.
L. Weber; M. Kouzeli; C. San Marchi; A. Mortensen : On the use of considere's criterion in tensile testing of materials which accumulate internal damage; Scripta Materialia. 1999. DOI : 10.1016/S1359-6462(99)00159-1.
L. Weber; 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. 1998. DOI : 10.1016/S0921-5093(97)00521-2.
G. Grossmann; L. Weber : Metallurgical considerations for accelerated testing of soft solder joints; IEEE transactions on components, packaging and manufacturing technology. Part C. Manufacturing. 1997.
L. Weber; 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. 2007. DOI : 10.1016/j.scriptamat.2007.08.007.
R. Tavangar; J. M. Molina; L. Weber : Assessing predictive schemes for thermal conductivity against diamond-reinforced silver matrix composites at intermediate phase contrast; Scripta Materialia. 2007. DOI : 10.1016/j.scriptamat.2006.11.008.
M. Bahraini; L. Weber; J. Narciso; A. Mortensen : Wetting in infiltration of alumina particle preforms with molten copper; Journal Of Materials Science. 2005. DOI : 10.1007/s10853-005-1980-1.
B. Moser; L. Weber; A. Mortensen : Damage accumulation during cyclic loading of a continuous alumina fibre reinforced aluminium composite; Scripta Materialia. 2005. DOI : 10.1016/j.scriptamat.2005.07.024.
R. Tavangar; L. Weber; 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. 2005.
L. Weber : Non-conducting inclusions in a conducting matrix: Influence of inclusion size on electrical conductivity; Acta Materialia. 2005.
L. Weber; R. Tavangar; A. Mortensen : Ductility of Saffil(TM) short fibre reinforced metals; Scripta Materialia. 2005. DOI : 10.1016/j.scriptamat.2005.03.027.
B. Moser; A. Rossoll; L. Weber; O. Beffort; A. Mortensen : Damage evolution of Nextel 610? alumina fibre reinforced aluminium; Acta Materialia. 2004. DOI : 10.1016/j.actamat.2003.09.040.
R. Tavangar; S. Nategh; L. Weber : Tensile behaviour and ductility of 10 vol.-% Saffil short fibre reinforced aluminium; Materials Science and Technology. 2004. DOI : 10.1179/026708304225012215.
M. Kouzeli; L. Weber; C. San Marchi; A. Mortensen : Corrigendum on the tensile behaviour of infiltrated alumina particle reinforced aluminium composites; Acta Materialia. 2003. DOI : 10.1016/S1359-6454(03)00431-2.
B. Moser; A. Rossoll; L. Weber; O. Beffort; A. Mortensen : Transmitted light microscopy of a fibre reinforced metal; Journal of Microscopy. 2003. DOI : 10.1046/j.1365-2818.2003.01097.x.
B. Moser; L. Weber; A. Rossoll; 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. 2003. DOI : 10.1016/S1359-835X(03)00134-9.
L. Weber; J. Dorn; A. Mortensen : On the electrical conductivity of metal matrix composites containing high volume fractions of non-conducting inclusions; Acta Materialia. 2003.
L. Weber; C. Fischer; A. Mortensen : On the influence of the shape of randomly oriented, nonconducting inclusions in a conducting matrix on the effective electrical conductivity; Acta Materialia. 2003.
L. Weber : Equilibrium solid solubility of silicon in silver; Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 2002.
M. Kouzeli; L. Weber; C. San Marchi; A. Mortensen : Influence of damage on the tensile behaviour of pure aluminium reinforced with ?40 vol. pct alumina particles; Acta Materialia. 2001. DOI : 10.1016/S1359-6454(01)00279-8.
M. Kouzeli; L. Weber; C. San Marchi; A. Mortensen : Quantification of microdamage phenomena during tensile straining of high volume fraction particle reinforced aluminum; Acta Materialia. 2001. DOI : 10.1016/S1359-6454(00)00334-7.
B. Moser; A. Rossoll; L. Weber; O. Beffort; A. Mortensen : Nextel? 610 alumina fibre reinforced aluminium: Influence of matrix and process on flow stress; Composites - Part A: Applied Science and Manufacturing. 2001.
R. A. Perren; T. A. Suter; P. J. Uggowitzer; L. Weber; R. Magdowski et al. : 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. 2001.
T. J. Grant; L. Weber; A. Mortensen : Plasticity in Chevron-notch fracture toughness testing; Engineering Fracture Mechanics. 2000. DOI : 10.1016/S0013-7944(00)00061-8.
L. Weber; P. Canalis-Nieto; A. Rossoll; A. Mortensen : Fracture strength of alumina fiber reinforced aluminum wire with and without a torsional pre-strain; Acta Materialia. 2000. DOI : 10.1016/S1359-6454(00)00112-9.
L. Weber; B. Moser; H. U. Künzi; A. Mortensen : Swift and inverse swift effect in alumina fiber reinforced aluminum wires; Acta Materialia. 2000. DOI : 10.1016/S1359-6454(00)00080-X.
L. Weber; M. Kouzeli; C. San Marchi; A. Mortensen : On the use of considere's criterion in tensile testing of materials which accumulate internal damage; Scripta Materialia. 1999. DOI : 10.1016/S1359-6462(99)00159-1.
L. Weber; 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. 1998. DOI : 10.1016/S0921-5093(97)00521-2.
G. Grossmann; L. Weber : Metallurgical considerations for accelerated testing of soft solder joints; IEEE transactions on components, packaging and manufacturing technology. Part C. Manufacturing. 1997.
Enseignement & Phd
Enseignement
- Materials Science and Engineering,
Programmes doctoraux
- Doctoral Program in Materials Science and Engineering
Doctorants
Binder Selmar Rudolf
Blank Maïté
Naikade Manoj Kondibhau
Schneider Gionata
Bahraini Hasani Maryam ...
Kazemi Hamed ...
Kida Masahiro ...
Monachon Christian ...
Roudini Ghodratollah ...
Blank Maïté
Naikade Manoj Kondibhau
Schneider Gionata
A dirigé les thèses de
Athanasiou-Ioannou Alexandros ...Bahraini Hasani Maryam ...
Kazemi Hamed ...
Kida Masahiro ...
Monachon Christian ...
Roudini Ghodratollah ...
Cours
Advanced metallurgy
Ce cours couvre des métaux et alliages avancés à la fois en terme de classes (base Ni, Ti, Mg, métaux précieux, High Entropy Alloys, verres métalliques) et de concepts généraux (p.ex. propriétés thermiques et électriques, caractéristiques généraux de méta... 