Aluminum/Carbon Composites Materials Fabricated by the Powder Metallurgy Process

Amélie Veillère, Hiroki Kurita, Akira Kawasaki, Yongfeng Lu, Jean Marc Heintz, Jean François Silvain

Research output: Contribution to journalArticle

Abstract

Aluminum matrix composites reinforced with carbon fibers or diamond particles have been fabricated by a powder metallurgy process and characterized for thermal management applications. Al/C composite is a nonreactive system (absence of chemical reaction between the metallic matrix and the ceramic reinforcement) due to the presence of an alumina layer on the surface of the aluminum powder particles. In order to achieve fully dense materials and to enhance the thermo-mechanical properties of the Al/C composite materials, a semi-liquid method has been carried out with the addition of a small amount of Al-Si alloys in the Al matrix. Thermal conductivity and coefficient of thermal expansion were enhanced as compared with Al/C composites without Al-Si alloys and the experimental values were close to the ones predicted by analytical models.

Original languageEnglish (US)
Article number4030
JournalMaterials
Volume12
Issue number24
DOIs
StatePublished - Dec 1 2019

Keywords

  • Al/C composite materials
  • Carbon fiber
  • Diamond particle
  • Powder processing
  • Semi-liquid route
  • Thermal management

ASJC Scopus subject areas

  • Materials Science(all)

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