無収縮アルミナ材料

• 犬塚 敦

  松下電子部品(株)開発技術センター材料開発室

• 富岡 聡志

  松下電子部品(株)開発技術センター材料開発室

• 原田 真二

  松下電子部品(株)開発技術センター材料開発室

書誌事項

タイトル別名

• Non-shrinkage Alumina Material.
• ム シュウシュク アルミナ ザイリョウ

抄録

To fabricate a sintered Al₂O₃ with high dimensional accuracy by near-net-shape firing, oxidation and sintering behavior of compacts of a mixture of Al₂O₃ and Al powders was studied. The compacts were prepared by compressing green-sheets obtained by doctor-brade method at 196MPa and fired at 1600°C or less in air. The oxidation of Al in the compact occured between about 450°C and 1300°C, and prevents the compact from shrinking in firing process at 1300°C or less. A part of melting Al in the compact spilled out of the compact in firing process, because Al melts below 800°C, its oxidation temperature. MgO, CaCO₃ and TiO₂ powders were added to prevent the Al spillage and Si powder was added to prevent the shrinkage by sintering at 1400°C or more. As a result, the sinterd Al₂O₃ having a density of 3.72g/cm³ and 0.7% shrinkage by sintering was fabricated by sintering with oxidation of Al and formation of mullite.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 44 (8), 729-733, 1997

  一般社団法人 粉体粉末冶金協会

キーワード

• near-net-shape
• oxidation
• Al<SUB>2</SUB>O<SUB>3</SUB>-Al
• shrinkage by sintering
• mullite

詳細情報

• CRID: 1390282681283923456
• NII論文ID: 10002014358
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.44.729
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4275736
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4275736
• 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