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Fabrication of fine mullite powders by alpha-Al(OH)3-SiO2 core-shell structure precursors
In order to obtain fine mullite powders by a simple and inexpensive process, alpha aluminum hydroxide (alpha-Al(OH)3) was used as raw material, and heterogeneous nucleation-and-growth process was chosen for the preparation of powders. Composite coating particles consisting of alpha-Al(OH)3 cores with outer amorphous silica shell were prepared by heterogeneous nucleation-and-growth process in the ethanol suspension containing ammonia, tetraethylorthosilicate (TEOS) and alpha-Al(OH)3. Fine mullite powders (average particle size 0.67 my m) were fabricated by calcined composite coating particles at 1500 degree C for 2 h.
Fabrication of fine mullite powders by alpha-Al(OH)3-SiO2 core-shell structure precursors
In order to obtain fine mullite powders by a simple and inexpensive process, alpha aluminum hydroxide (alpha-Al(OH)3) was used as raw material, and heterogeneous nucleation-and-growth process was chosen for the preparation of powders. Composite coating particles consisting of alpha-Al(OH)3 cores with outer amorphous silica shell were prepared by heterogeneous nucleation-and-growth process in the ethanol suspension containing ammonia, tetraethylorthosilicate (TEOS) and alpha-Al(OH)3. Fine mullite powders (average particle size 0.67 my m) were fabricated by calcined composite coating particles at 1500 degree C for 2 h.
Fabrication of fine mullite powders by alpha-Al(OH)3-SiO2 core-shell structure precursors
Tang, YueFeng (Autor:in) / Lu, Yinong (Autor:in) / Li, Aidong (Autor:in) / Li, Xiaoyun (Autor:in) / Shi, ShuZhe (Autor:in) / Ling, Zhi-Da (Autor:in)
Applied Surface Science ; 202 ; 211-217
2002
7 Seiten, 12 Quellen
Aufsatz (Zeitschrift)
Englisch
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