Correlation of the mechanical properties of Cu/C composite materials with the chemistry of Cu C interfacial zone
SILVAIN, Jean-François
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical and Computer Engineering
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Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical and Computer Engineering
SILVAIN, Jean-François
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical and Computer Engineering
< Leer menos
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Department of Electrical and Computer Engineering
Idioma
en
Article de revue
Este ítem está publicado en
Materials Characterization. 2021, vol. 179, p. 111364
Elsevier
Resumen en inglés
In the frame of thermal management applications, copper metal matrix reinforced by carbon fibers (CF) are undoubtedly one of the most promising composites for heat sinks. In this work, two types of composite materials were ...Leer más >
In the frame of thermal management applications, copper metal matrix reinforced by carbon fibers (CF) are undoubtedly one of the most promising composites for heat sinks. In this work, two types of composite materials were produced: Cu(Cusingle bondTi)x/CF composites fabricated with a mixture of Cu and Cusingle bondTi powders by a solid-liquid co-existent phase process and Cu/CF composites fabricated without the Cusingle bondTi powder. The mechanical properties and post-deformation microstructures of both composite materials have been investigated. Compression tests were performed at room temperature under constant strain-rate deformation condition. Elastic properties were examined using a dynamic resonant method over the temperature range 20 °C - 250 °C. The results show that the addition of Ti and the resulting formation of the TiC interphase at the Cu-CF interfaces are able to create strong interfacial bonding evidenced by a deformation without pull-out. When the volume fraction of CFs reaches 40%, crack percolation occurs in the Cu(CuTi)/CF composite leading to the sample ruin in case of strong interfaces. In the case of Cu/CF, fiber pull-out allows for deformation.< Leer menos
Palabras clave en inglés
Metal matrix composite
Microstructure
Mechanical properties
Carbon fiber
Copper matrix
Orígen
Importado de HalCentros de investigación