書誌事項
- タイトル別名
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- Synthesis of Pure AlN Powder by the Floating Nitridation Technique
- フジョウ チッカ ハンノウ ニ ヨル コウ ジュンド AlN フンマツ ノ ゴ
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抄録
A pure AlN powder was synthesized continuously at 1150-1500°C by the floating nitridation technique. The nitriding temperature was reduced about 200°C by using N2 as floating gas for Al powder and injecting an N2/NH3 gas mixture at the center of the heating zone. The AlN powder obtained at 1300°C had a size of about 10μm and specific surface area of 24.2m2/g. AlN particles were so brittle that they were easily crushed to below 0.1μm. This AlN powder had good flowability and sinterability, and transparent AlN ceramics were obtained by hot-pressing at 1900°C without any sintering aids. A percentage conversion decreased rapidly with increase in NH3 concentration when an N2/NH3 gas mixture was used as floating gas. The nitriding rate depended strongly on the cracks formed on the particle surface, but not on the diffusion of nitrogen through the surface AlN layer.
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 102 (1191), 1032-1036, 1994
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390282680254165504
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- NII論文ID
- 110002290489
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
- http://id.crossref.org/issn/09145400
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- HANDLE
- 10191/7407
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- NDL書誌ID
- 3906169
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可