Development of highly corrosion-resistant β-SiAlON ceramics

Junichi Tatami; Azuma Nagatome; Qiang Li; Takeshi Meguro; Katsutoshi Komeya

doi:10.14853/pcersj.2003S.0.488.0

Preprints of Annual Meeting of The Ceramic Society of Japan
Preprints of Fall Meeting of The Ceramic Society of Japan

Preprints of Annual Meeting of The Ceramic Society of Japan, 2003

Session ID : 2I12

DOI https://doi.org/10.14853/pcersj.2003S.0.488.0

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Host: The Ceramic Society of Japan

Development of highly corrosion-resistant β-SiAlON ceramics

*Junichi Tatami, Azuma Nagatome, Qiang Li, Takeshi Meguro, Katsutoshi Komeya

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Abstract

β-sialon ceramics was fabricated using the nano-sized β-sialon powder by spark plasma sintering method. The β-sialon nano ceramics was found to have much higher corrosion resistance than commercialized Si₃N₄ ceramics. As a result of SPM observation of the surface, it was confirmed that the corrosion of β-SiAlON nano ceramics in acid made very slow progress because glass phase is hardly found in the grain boundary.

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