A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POROUS ALUMINA SINTERED BODY AND PRODUCTION METHOD THEREFOR
To provide a porous alumina sintered body that has pore characteristics such as excellent porosity and specific surface area, and a production method therefor.SOLUTION: Porous alumina particulate material is obtained from droplets of raw material liquid including carboxylic acid as a dispersant and including aluminum-containing colloid by a spray pyrolysis method. A porous alumina sintered body is obtained by sintering molding material including the particulate material, in which the porous alumina sintered body includes crystalline alumina, has an average pore diameter of 0.2 μm or more and 1.0 μm or less, and has D10/D90 of 2.0 or less.SELECTED DRAWING: None
【課題】優れた気孔率や比表面積などの細孔特性を有する多孔質アルミナ焼結体及びその製造方法を提供する。【解決手段】分散剤としてのカルボン酸を含みアルミニウム含有コロイドを含む原料液の液滴を噴霧熱分解法で多孔質アルミナ粒子材料を取得し、当該粒子材料を含む成形材料を焼結することで、結晶性アルミナを含有し、平均孔径が０．２μｍ以上１．０μｍ以下であり、Ｄ１０／Ｄ９０が２．０以下である、多孔質アルミナ焼結体を得る。【選択図】なし
POROUS ALUMINA SINTERED BODY AND PRODUCTION METHOD THEREFOR
To provide a porous alumina sintered body that has pore characteristics such as excellent porosity and specific surface area, and a production method therefor.SOLUTION: Porous alumina particulate material is obtained from droplets of raw material liquid including carboxylic acid as a dispersant and including aluminum-containing colloid by a spray pyrolysis method. A porous alumina sintered body is obtained by sintering molding material including the particulate material, in which the porous alumina sintered body includes crystalline alumina, has an average pore diameter of 0.2 μm or more and 1.0 μm or less, and has D10/D90 of 2.0 or less.SELECTED DRAWING: None
【課題】優れた気孔率や比表面積などの細孔特性を有する多孔質アルミナ焼結体及びその製造方法を提供する。【解決手段】分散剤としてのカルボン酸を含みアルミニウム含有コロイドを含む原料液の液滴を噴霧熱分解法で多孔質アルミナ粒子材料を取得し、当該粒子材料を含む成形材料を焼結することで、結晶性アルミナを含有し、平均孔径が０．２μｍ以上１．０μｍ以下であり、Ｄ１０／Ｄ９０が２．０以下である、多孔質アルミナ焼結体を得る。【選択図】なし
POROUS ALUMINA SINTERED BODY AND PRODUCTION METHOD THEREFOR
多孔質アルミナ焼結体及びその製造方法
SUEHIRO SATOSHI (author) / OKAWA HAJIME (author) / KIMURA TEIICHI (author) / TAKAHASHI SEIJI (author)
2019-03-28
Patent
Electronic Resource
Japanese
ALUMINA SINTERED BODY PRODUCTION METHOD AND ALUMINA SINTERED BODY
| European Patent Office | 2022