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Preperation of powders in the Al2O3-SiO2 system by hydrothermal treatment of alkoxide
アルコキシドの水熱処理によるAl2O3‐SiO2系粉末の調製
1984
Journal of the Japan Society of Powder and Powder Metallurgy
アルコキシドの水熱処理によるAl2O3‐SiO2系粉末の調製
Preserved Fulltext
Aluminosilicate powders were obtained by hydrothermal treatment of mixed alkoxide solution containing A1203:Si02=3:2 (mol ratio) with distilled water at 300-600•Ž under 10-100 MPa for 2 hr. Very fine crystalline pseudoboehmite (ƒÁ-AIOOH)-like phase was formed at 300-500•Ž under 10-100 MPa. Above 600•Ž, instead of the pseudoboehmite-like phase, amorphous product was formed under 10 MPa, AI-Si spinel under 50 MPa, and hydralsite (2Al203¥2SiO2•H20), AS(H)-II (close to Al2SiO5), Al-Si spinel and a
doi:10.2497/jjspm.31.215
fatcat:bxxr2cjkljde3kt4uhnkfnb554