Resintering behavior of alumina compact on the route of controlled fracture forming

Wen Bo Du, Kiyohiko Tatsuzawa, Tatsuhiko Aizawa, Junji Kihara

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The resintering behavior of swaged Al2O3 up to 98% reduction in area was investigated to discuss the intense cold-working effect in the green state. The relative density of resintered Al2O3 could be improved to be close to 99% theoretical density at 1573 K for 1 h, and negligibly small grain growth was observed when the relative density became less than 97.5%. Grain boundary diffusion was considered to be a dominant mechanism for resintering the swaged Al2O3 by calculating the activation energy. The negligibly small grain growth was attributed to the homogeneous microstructure in the green state attained by the controlled fracture forming.

本文言語English
ページ(範囲)125-129
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
46
2
DOI
出版ステータスPublished - 1999 2月

ASJC Scopus subject areas

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学

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