Formation of extremely large pores in alumina ceramics at final stage of sintering

Kazuyoshi Sato; Zenji Kato; Satoshi Tanaka; Nozomu Uchida; Keizo Uematsu

doi:10.14853/pcersj.2002F.0.51.0

15th Fall Meeting of The Ceramic Society of Japan

DOI https://doi.org/10.14853/pcersj.2002F.0.51.0

Conference information

Host: The Ceramic Society of Japan

Formation of extremely large pores in alumina ceramics at final stage of sintering

Kazuyoshi Sato, Zenji Kato, Satoshi Tanaka, Nozomu Uchida, Keizo Uematsu

Author information

Keywords: Alumina, Grain size, Large defect, Final stage of sintering

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 51

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Abstract

Formation and development of extremely large pores in alumina ceramics were investigated. Alumina specimens were sintered at 1350-1600°C. They were thinned down to about 150μm and their internal structures were characterized with direct observation method using optical microscope in transmission mode. They are precisely characterized using SEM. The large pore observed in the specimen sintered at 1500°C consisted of many small pores.

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