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Silicon nitride wear resistant member and method of manufacturing the member

  • US 20020136908A1
  • Filed: 01/11/2002
  • Published: 09/26/2002
  • Est. Priority Date: 01/12/2001
  • Status: Active Grant
First Claim
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1. A wear resistant member composed of silicon nitride sintered body containing 1-10 mass % of rare earth element in terms of oxide thereof as sintering agent, wherein a total oxygen content of said silicon nitride sintered body is 6 mass % or less, a porosity of said silicon nitride sintered body is 0.5 vol. % or less, and a maximum size of pore existing in grain boundary phase of the silicon nitride sintered body is 0.3 μ

  • m or less.

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