Effect of particle size distribution and mixing homogeneity on microstructure and strength of alumina/copper composites

Sung Tag Oh, Tohru Sekino, Koichi Niihara

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The powder mixtures of Al2O3/CuO with a variation in particle size distribution and mixing homogeneity were prepared using different milling process. The mixing homogeneity was quantitatively determined by the coefficient of variation. Homogeneous microstructure and a high fracture strength of the hot-pressed Al2O3/Cu composites could be achieved using the powder mixture with narrow size distribution and high mixing homogeneity. The relationship between mixing homogeneity and properties was discussed based on the role of unevenly dispersed second phase for the matrix grain growth andfor the local variation of mechanical characteristics.

Original languageEnglish
Pages (from-to)327-332
Number of pages6
JournalNanostructured Materials
Volume10
Issue number2-8
DOIs
Publication statusPublished - 1998 Feb

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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