Vapor grown carbon fiber reinforced aluminum matrix composites for enhanced thermal conductivity

J. M. Ting, C. Tang, P. Lake

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

Aluminum matrix composites reinforced with high thermal conductivity vapor grown carbon fiber (VGCF) were developed for improved thermal efficiencies in electronic devices. The carbon fiber was heat treated to increase its thermal conductivity. Various aluminum matrix composites were fabricated by the densification of fiber preforms using a pressure casting technique. Uniformity of the density was examined using optical microscopy. A scanning electron microscope equipped with a microprobe was utilized to examine the mechanical integrity of the composite. Mechanical properties, including tension, compression and flexural properties, were measured. While the results of the mechanical property measurements indicate moderate values, the composite exhibited remarkable thermal conductivity that reached 642 W/m·K, three times that of aluminum, at a fiber volume fraction of 36.5%, following closely the rule of mixture.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalMaterials Research Society Symposium - Proceedings
Volume551
Publication statusPublished - 1999 Dec 1
EventThe 1998 MRS Spring Meeting - Symposium on 'Materials in Space-Science, Technology and Exploration' - Boston, MA, USA
Duration: 1998 Nov 291998 Dec 2

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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