Copper-carbon and aluminum-carbon composites fabricated by powder metallurgy processes

Jean François Silvain, Amélie Veillère, Yongfeng Lu

Research output: Contribution to journalConference article

14 Scopus citations

Abstract

The increase in both power and packing densities in power electronic devices has led to an increase in the market demand for effective heat-dissipating materials, with high thermal conductivity and thermal- expansion coefficient compatible with chip materials still ensuring the reliability of the power modules. In this context, metal matrix composites: carbon fibers and diamond-reinforced copper and aluminum matrix composites among them are considered very promising as a next generation of thermal-management materials in power electronic packages. These composites exhibit enhanced thermal properties compared to pure copper combined with lower density. This article presents the fabrication techniques of copper/carbon fibers and copper/diamond and aluminum/carbon fibers composite films by powder metallurgy and hot pressing. The thermal analyses clearly indicate that interfacial treatments are required in these composites to achieve high thermomechanical properties. Interfaces (through novel chemical and processing methods), when selected carefully and processed properly will form the right chemical/mechanical link between metal and carbon, enhancing all the desired thermal properties while minimizing the deleterious effect.

Original languageEnglish (US)
Article number012015
JournalJournal of Physics: Conference Series
Volume525
Issue number1
DOIs
StatePublished - Jan 1 2014
EventEurotherm Seminar 102: Thermal Management of Electronic Systems - Limerick, Ireland
Duration: Jun 18 2014Jun 20 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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