Cutting Performance of High Purity Alumina Ceramic Tools formed by a High-speed Centrifugal Compaction Process

Shunzo Tashima, Yasuo Yamane, Hidenori Kuroki, Norihiko Narutaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Using a high-speed centrifugal compaction process (centrifugal force : 1×104~2×104 G) developed by the authors, a slip prepared from alumina powder with a purity of 99.99 % and an average particle size of 0.22 μ m was compacted, and sintered at 1230°C for 1.5 hours in the atmosphere. The sintered compact has superior mechanical properties, including a 3-point bending strength of 1330 M Pa and a Vickers hardness of 2100. The cutting performance of this high-strength alumina sintered compact was studied in this experiment. The results show that tools manufactured using the subject high-speed centrifugal compaction process have relatively high wear resistance and toughness as compared with commercially available high purity alumina ceramic tools.

Original languageEnglish
Pages (from-to)464-468
Number of pages5
Journaljournal of the japan society of powder and powder metallurgy
Volume42
Issue number4
DOIs
Publication statusPublished - 1995
Externally publishedYes

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Keywords

  • alumina
  • centrifugal compaction
  • cutting tool
  • high purity
  • wear resistance

ASJC Scopus subject areas

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

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