噴霧熱分解により合成したシリカ-アルミナ粉末の焼結性

• 熊沢 猛

  美濃窯業 (株) 技術研究所

• 神崎 修三

  名古屋工業技術試験所

• 浅海 順治

  日本セメント (株) 中央研究所

• 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

• Sinterability of SiO₂-Al₂O₃ Powders Prepared by Spray Pyrolysis
• フンム ネツ ブンカイ ニ ヨリ ゴウセイシタ シリカ アルミナ フンマツ ノ
• Effect of Chemical Composition
• 化学組成の影響

抄録

The SiO₂-Al₂O₃ powders containing 68 to 78wt% Al₂O₃ were synthesized by spray pyrolysis technique to study their sinterability at 1630°-1650°C. The prepared amorphous powders were transformed directly to crystalline mullite by calcination above 980°C. When heat-treated at temperatures above 1500°C, corundum was detected in the powder composed of 78wt% Al₂O₃. Densification of the silica-rich powder was accelerated by the formation of glassy phase, and the bulk density of alumina-rich powder also increased with the increase of alumina content. While, in the 3Al₂O₃⋅2SiO₂ region, poor densification was observed. The shape of mullite grain in the sintered body changed from needle-like to roundish in compliance with the increase in alumina content, and corundum particles were observed along the grain-boundary in the sintered specimen of 78wt% Al₂O₃ content. Glassy phase which consists merely of silicon and oxygen was observed along the grain-boundaries of the 70wt% Al₂O₃ sintered body.

収録刊行物

• 窯業協會誌

  窯業協會誌 94 (1089), 485-490, 1986

  公益社団法人 日本セラミックス協会

キーワード

• Sinterability
• Mullite
• Spray pyrolysis
• Glassy phase
• Corundum

詳細情報

• CRID: 1390282680224961664
• NII論文ID: 110002313463
• NII書誌ID: AN00245650
• DOI: 10.2109/jcersj1950.94.1089_485
• ISSN: 18842127
• ISSN: 00090255
• ISSN: http://id.crossref.org/issn/00090255
• NDL書誌ID: 3081515
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3081515
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1950/94/1089/94_1089_485/_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