Effect of Ball-Milling Time for Powder Mixing on the Thermomechanical Properties of SiC-AlN System Ceramics

Jing Feng Li, Akira Kawasaki, Ryuzo Watanabe

Research output: Contribution to journalArticlepeer-review

Abstract

It is well-known that solid solutions can be formed in SiC-AIN system over a wide range of composition. The formation of the solid solution during sintering is, however, not sufficient in usual elemental powder mixtures due to their low diffusion coefficients. In the present study, SiC-AlN powder mixtures were prepared by ball-milling for 1 to 300h and subsequent HIPing at 2073 to 2173K for 2h. The formation of solid solutions was found to be enhanced in fine-mixed powder mixture. Variation of the thermal and mechanical properties for the HIPed compacts was found to depend on the ball-milling time. When the ball-milling time was prolonged up to 100h, almost homogeneous solid solution was formed, and the intrinsic properties to the SiC-AIN solid solutions were obtained.

Original languageEnglish
Pages (from-to)890-894
Number of pages5
Journaljournal of the japan society of powder and powder metallurgy
Volume40
Issue number9
DOIs
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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