Journal of Materials Science

, Volume 38, Issue 23, pp 4745–4755

SiC-particulate aluminum composite foams produced by powder compacts: Foaming and compression behavior

  • S. Elbir
  • S. Yilmaz
  • A. K. Toksoy
  • M. Guden
  • I. W. Hall
Article

DOI: 10.1023/A:1027427102837

Cite this article as:
Elbir, S., Yilmaz, S., Toksoy, A.K. et al. Journal of Materials Science (2003) 38: 4745. doi:10.1023/A:1027427102837

Abstract

The foaming behavior of SiC-particulate (8.6% by volume) aluminum composite powder compacts contained Titanium Hydride blowing agent was investigated by heating above the melting temperature (750°C) in a pre-heated furnace. Aluminum powder compacts were also prepared and foamed using similar compaction and foaming parameters in order to determine the effect of SiC-particulate addition on foaming and compression behavior. The linear expansions of the compacts at various furnace holding times were ex situ determined. Optical and scanning electron microscopy techniques were used to characterize prepared and deformed foams microstructures. The SiC-particulate addition was found to increase the linear expansion and reduce the extent of the liquid metal drainage and cell coarsening of the aluminum compacts. The composite foam samples also showed higher compressive stresses, but a more brittle behavior as compared with aluminum foams.

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • S. Elbir
    • 1
  • S. Yilmaz
    • 2
  • A. K. Toksoy
    • 3
  • M. Guden
    • 3
  • I. W. Hall
    • 4
  1. 1.Materials Science and Engineering ProgramDepartment of İzmir Institute of TechnologyIzmirTurkey
  2. 2.Chemical Engineeringİzmir Institute of TechnologyIzmirTurkey
  3. 3.Mechanical Engineeringİzmir Institute of TechnologyIzmirTurkey
  4. 4.Department of Mechanical EngineeringUniversity of DelawareNewarkUSA

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