VEILLERE, Amélie; SUNDARAMURTHY, Aravind; HEINTZ, Jean-Marc; LAHAYE, Michel; DOUIN, Joël; CHANDRA, Namas; ENDERS, Susan; SILVAIN, Jean-François

doi:10.1016/j.actamat.2010.11.006

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VEILLERE, Amélie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

SUNDARAMURTHY, Aravind
College of Engineeriing

HEINTZ, Jean-Marc
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Acta Materialia. 2011, vol. 59, n° 4, p. 1445-1455

Elsevier

Résumé en anglais

The properties of a composite material are determined not only by the constitutive properties of the matrix and the reinforcement, but also by the type and nature of interfacial bonding between them. For thermo-mechanical applications, the influence of interfaces and interphases is fundamental. In this work, we comprehensively study the copper alloy/carbon fiber composite material interfaces, with and without interphases, in terms of microstructural and chemical properties at the micro- and nanometric scales. These properties are then correlated with the local mechanical properties as determined by nanoindentation, enabling us to establish a direct relationship between the chemistry and mechanical properties at the microscale. In addition to experimental measurements, three-dimensional finite element simulations are performed on the matrix/interphase/reinforcement system, and the results between experiments and simulations show very good agreement, validating our basic hypothesis that the local mechanical properties are determined by the material chemistry.< Réduire

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Interfaces

Metal matrix composite (MMC)

Microstructure

Nanoindentation

Finite element analysis

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Relationship between interphase chemistry and mechanical properties at the scale of micron in Cu–Cr/CF composite

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