Concept

Metal matrix composite

Related publications (318)

Uniaxial deformation of microcellular metals: model systems and simplified analysis

Andreas Mortensen, Etienne Combaz, Sébastien Philippe Soubielle, Frédéric Diologent, Yves Conde, Randoald Müller, Jean-François Despois

Microcellular aluminium can be produced by a process known as replication; this involves the infiltration of a packed bed of NaCl particles which are subsequently leached after metal solidification. The resulting material features a uniform distribution of ...

Springer2009

Analysis of transient mechanical loss due to thermal stresses in metal matrix composites

Daniele Mari, Robert Schaller, Abu Salek Md. Fahim Chowdhury

Mechanical spectroscopy has been used to study the thermal stress relaxation at the interfaces in magnesium matrix composites. The mechanical loss spectra measured as a function of temperature show an intrinsic component superimposed on transient damping. ...

2009

Damage propagation and fracture in highly reinforced particulate metal matrix composites

Aude Hauert

This study contributes to our understanding of the damage evolution and fracture behaviour of two-phase materials that combine brittle particles with a ductile matrix. We focus on model composites roughly half-ceramic/half-metal that are produced in-house ...

EPFL2009

Mechanical behaviour of diamond reinforced metals

Ludger Weber, Reza Tavangar Hamzehkolaei

Diamond reinforced metals with a diamond content of 55-60 vol.% were made by gas driven liquid metal infiltration. They were characterized with regard to their stiffness, strength and fracture toughness as a function of diamond particle size and matrix all ...

2009

Numerical simulation of solidification kinetics in A356/SiCp composites for assessment of as-cast particle distribution

Arda Cetin

The present work is aimed at studying the effect of solidification rate on reinforcement clustering in particle reinforced metal matrix composites (PMMCs) through numerical simulations and experimental studies. A macrotransport-solidification kinetics (MTS ...

2009

Surface Modification of Diamonds in Diamond/Al-matrix Composites

Ludger Weber, Reza Tavangar Hamzehkolaei

Fe- or Mn-powders were mixed with the diamonds and the mixtures were heat treated under different gas atmospheres like hydrogen or argon gas and at varying temperatures in order to roughen the surface of the diamond particles. Subsequently the reaction lay ...

Trans Tech Publications2009

Multi-scale characterization of particle clustering in discontinuously reinforced composites

Arda Cetin

The applicability of a quantitative characterization scheme for cluster detection in particle reinforced composites is discussed. The method considers the pattern from the perspective of individual particles, so that even in a pattern that globally conform ...

2009

Rigidity of diamond reinforced metals featuring high particle contents

Ludger Weber, Reza Tavangar Hamzehkolaei

Diamond/metal composites with diamond contents between 57 and 72 vol% have been produced by gas pressure assisted liquid metal infiltration using Ag-3 wt% Si and Al-2 wt% Cu as matrix. The experimental data cover a range of Young's moduli from 300 to 425 G ...

2009

Multiscale modeling of ductile-fiber-reinforced composites

William Curtin

The tensile strength and ductility of fiber-reinforced composites containing ductile metal fibers is studied using a multiscale approach and compared to the performance of an identical composite containing elastic fibers. A finite element model of stress r ...

2009

An axisymmetric stress analysis in a single fibre composite of finite length under a thermal expansion mismatch

John Botsis, Laurent Humbert, Fabiano Colpo

In this paper, an exact solution is derived for the characterization of thermal stresses in a single-fibre composite of finite length. All the required boundary and interfacial conditions of the thermo-elastic problem are thus satisfied exactly. The propos ...

2009

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