書誌事項
- タイトル別名
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- Fabrication of Porous Spinel-Alumina Ceramic Composite by a Solution Impregnation Method
- 溶液含浸法を用いたアルミナースピネル複合多孔体の作製
- ヨウエキ ガンシンホウ オ モチイタ アルミナースピネル フクゴウ タコウタイ ノ サクセイ
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説明
Porous MgAl2O4-Al2O3 ceramic composites were fabricated by impregnating porous Al2O3 bodies calcined at various temperatures with Mg(NO3)2 aqueous solution under reduced pressure, followed by firing at 1500℃. Porous Al2O3 bodies were with continuously long-ranged pore structure was prepared by a unidirectional freeze casting using aqueous slurries and then calcined at 1300℃ 1400℃. The effects of the calcination temperature of Al2O3 bodies and the number of Mg(NO3)2 impregnation on spinel formation at 1500℃ were investigated. The amount of spinel in the bodies sintered at 1500℃ increased with increasing the number of the impregnation with Mg(NO3)2 solution and decreasing calcination temperature of Al2O3 bodies. When the Al2O3 bodies calcined at 1400℃, Mg(NO3)2 solution was difficult to penetrate into Al2O3 ceramic walls because of the densification of Al2O3 ceramic walls. Thus, spinel tended to form near the Al2O3 bodies calcined at 1300℃, Mg(NO3)2 solution penetrated deeper into Al2O3 ceramic walls. And therefore, Mg widely distributed in the Al2O3 ceramic walls and a large amount of spinel formed ever at less number of the impregnation of Mg(NO3)2 solution.
収録刊行物
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- 材料
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材料 64 (6), 438-441, 2015
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390001205444513920
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- NII論文ID
- 130005077705
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 026564779
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
