非晶質から結晶化させた窒化ケイ素の焼結性と機械的性質

• 神崎 修三

  名古屋工業技術試験所

• 阿部 修実

  名古屋工業技術試験所

• 田端 英世

  名古屋工業技術試験所

書誌事項

タイトル別名

• Sintering and Mechanical Properties of Silicon Nitride Crystallized from Amorphous Powder
• ヒショウシツ カラ ケッショウカサセタ チッカ ケイソ ノ ショウケツセイ ト
• Effect of Yttria Addition
• イットリア添加の影響

抄録

The present study was conducted to clarify the effect of Y₂O₃ addition on the crystallization behavior of amorphous silicon nitride, the sinterability of the crystallized powder and the mechanical properties of the hot-pressed body. The results obtained are summarized as follows:<br>(1) The addition of Y₂O₃ promoted crystallization of amorphous Si₃N₄ to α-phase and the α/β transformation rate.<br>(2) When the amorphous Si₃N₄ powder was crystallized without additive, the resulted powder was composed of extremely elongated particles and equiaxed particles, while the powder crystallized after the addition of Y₂O₃ was composed of fairly small particles with uniformly distributed sizes of α- or β-phase silicon nitride.<br>(3) Considerably high mechanical strength and fracture toughness were obtained even though the crystallized silicon nitride powder was composed of mainly β-phase.<br>(4) The initial α-phase content had no significant effect on bulk density, flexural strength and K_IC value, when the amorphous Si₃N₄ powders are crystallized with the addition of Y₂O₃.

収録刊行物

• 窯業協會誌

  窯業協會誌 94 (1085), 169-176, 1986

  公益社団法人 日本セラミックス協会

キーワード

• Silicon nitride
• Amorphous silicon nitride
• Crystallization
• Y₂O₃ addition
• Mechanical properties
• Hot-pressing

詳細情報

• CRID: 1390282680224697088
• NII論文ID: 110002316701
• NII書誌ID: AN00245650
• DOI: 10.2109/jcersj1950.94.169
• ISSN: 18842127
• ISSN: 00090255
• NDL書誌ID: 3069192
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3069192
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1950/94/1085/94_1085_169/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可