多孔質SiCの高温酸化

• 南里 隼人

  京都工芸繊維大学工芸学部物質工学科

• 白井 充

  京都工芸繊維大学工芸学部物質工学科

• 竹内 信行

  京都工芸繊維大学工芸学部物質工学科

• 石田 信伍

  京都工芸繊維大学工芸学部物質工学科

• 渡部 公士

  大光炉材 (株)

• 若松 盈

  大光炉材 (株)

書誌事項

タイトル別名

• Oxidation Behavior of Porous SiC at High Temperatures
• タコウシツ SiC ノ コウオン サンカ

抄録

The oxidation behavior of porous high-purity SiC was studied at 1600 and 1700K for 15h in Ar-O₂ (P_O₂: 0.02-97kPa) by measuring the oxidation rate. In oxidation at 1600K, only the weight gain of the SiC was observed after the oxidation, and the amount of cristobalite on the oxidized surface increased with increasing P_O₂. In oxidation at 1700K, the weight loss was observed at the oxygen partial pressure of 0.02kPa while the weight gains were observed at an oxygen partial pressures of 2 and 97kPa. The oxidation rate was determined by measuring the evolved gases throughout the oxidation reaction using a mass spectrometer. The oxidation kinetics obeyed the parabolic law under 0.02-97kPa at 1600K and under 2-97kPa at 1700K, indicating that. the passive oxidation occurred. The transition oxygen partial pressure below which the oxidation mechanism changes from passive to the active one, is presumed to be approximately 0.1kPa in the case of the oxidation at 1700K.

収録刊行物

• Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)

  Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 104 (1212), 738-742, 1996

  公益社団法人 日本セラミックス協会

キーワード

• Mass spectrometer
• Porous SiC
• Passive oxidation
• Active oxidatio

詳細情報

• CRID: 1390001205279364736
• NII論文ID: 110002291461
• NII書誌ID: AN10040326
• DOI: 10.2109/jcersj.104.738
• ISSN: 18821022
• ISSN: 09145400
• NDL書誌ID: 4004661
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4004661
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1988/104/1212/104_1212_738/_pdf
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