Relationship between microstructure and machining damage of alumina ceramics

Kazuyoshi Sato; Sintaro Yonetan; Satoshi Tanaka; Nozomu Uchida; Keizo Uematsu

doi:10.14853/pcersj.2002F.0.401.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.401.0

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Host: The Ceramic Society of Japan

Relationship between microstructure and machining damage of alumina ceramics

Kazuyoshi Sato, Sintaro Yonetan, Satoshi Tanaka, Nozomu Uchida, Keizo Uematsu

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Keywords: Alumina, Grinding, Machining damage, Grain size, Confocal scanning laser fluorescent microscope, Machining condition

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Pages 401

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Abstract

The relationship between grain size and machining induced damage was investigated for alumina ceramics. Machining induced damage was identified using a fluorescence dye impregnation method with confocal scanning laser fluorescent microscope (CSLFM). Strength degradation is significant for ground specimens with small grains. This strength degradation was understood by observation of fracture surface using CSLFM.

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