Solid-liquid co-existent phase process: towards fully dense and thermally efficient Cu/C composite materials
AZINA, Clio
Department of Electrical Engineering
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Department of Electrical Engineering
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
AZINA, Clio
Department of Electrical Engineering
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Leer menos
Department of Electrical Engineering
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Alloys and Compounds. 2018, vol. 738, p. 292-300
Elsevier
Resumen en inglés
Metal matrix composites are currently being investigated for thermal management applications. In the case of a copper/carbon (Cu/C) composite system, a particular issue is the lack of affinity between the Cu matrix and the ...Leer más >
Metal matrix composites are currently being investigated for thermal management applications. In the case of a copper/carbon (Cu/C) composite system, a particular issue is the lack of affinity between the Cu matrix and the C reinforcements. Titanium-alloyed Cu (Cu-Ti) powders were introduced in a Cu/C powder mixture and sintered under load at a temperature at which the Cu-Ti powders became liquid, while the rest of the Cu and C remained solid. Fully dense materials were obtained (porosity of less than 5%). The creation of regular and homogeneous interphases was confirmed. All Ti reacted with the carbon, hence purifying the Cu matrix. Thermal conductivities were enhanced as compared with the Cu/C composites without interphase. The chemical analyses are in agreement with thermodynamic simulations carried out to predict the phase transformation during the sintering process.< Leer menos
Palabras clave en inglés
CALPHAD
conduction
metal matrix composites
heat
solid-liquid co-existent phase process
Proyecto ANR
Interactions and transfers at fluids and solids interfaces - ANR-11-LABX-0017
Orígen
Importado de HalCentros de investigación