Middle stage heat treatment for microstructure control of reaction-bonded silicon nitride-silicon carbide composite

Naoki Kondo, Kenji Kaneko, Yoshikazu Suzuki, Tatsuki Ohji

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

A silicon nitride-silicon carbide composite was fabricated from silicon and carbon powders by reaction-bonding and post-hot-pressing procedures. The fabricated specimens had a nanocomposite-like microstructure with β-silicon nitride and β-silicon carbide. For some specimens, middle-stage heat treatment was applied before hot-pressing, which resulted in microstructure formation with large and elongated silicon nitride grains. With this microstructure, the specimens subjected to the middle stage heat treatment exhibited much higher fracture toughness than those not subjected to it.

元の言語英語
ページ(範囲)445-448
ページ数4
ジャーナルJournal of the Ceramic Society of Japan
108
発行部数5
出版物ステータス出版済み - 1 1 2000
外部発表Yes

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Silicon nitride
silicon nitrides
Silicon carbide
silicon carbides
heat treatment
hot pressing
Heat treatment
Hot pressing
microstructure
Microstructure
composite materials
reaction bonding
Composite materials
Silicon
fracture strength
Powders
Fracture toughness
Nanocomposites
nanocomposites
Carbon

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

これを引用

Middle stage heat treatment for microstructure control of reaction-bonded silicon nitride-silicon carbide composite. / Kondo, Naoki; Kaneko, Kenji; Suzuki, Yoshikazu; Ohji, Tatsuki.

:: Journal of the Ceramic Society of Japan, 巻 108, 番号 5, 01.01.2000, p. 445-448.

研究成果: ジャーナルへの寄稿記事

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AU - Ohji, Tatsuki

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N2 - A silicon nitride-silicon carbide composite was fabricated from silicon and carbon powders by reaction-bonding and post-hot-pressing procedures. The fabricated specimens had a nanocomposite-like microstructure with β-silicon nitride and β-silicon carbide. For some specimens, middle-stage heat treatment was applied before hot-pressing, which resulted in microstructure formation with large and elongated silicon nitride grains. With this microstructure, the specimens subjected to the middle stage heat treatment exhibited much higher fracture toughness than those not subjected to it.

AB - A silicon nitride-silicon carbide composite was fabricated from silicon and carbon powders by reaction-bonding and post-hot-pressing procedures. The fabricated specimens had a nanocomposite-like microstructure with β-silicon nitride and β-silicon carbide. For some specimens, middle-stage heat treatment was applied before hot-pressing, which resulted in microstructure formation with large and elongated silicon nitride grains. With this microstructure, the specimens subjected to the middle stage heat treatment exhibited much higher fracture toughness than those not subjected to it.

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