TY - JOUR
T1 - Mullite precursor part I. Characterization of mullite precursor formed by a reaction of monosilicic acid on aluminum hydroxide
AU - Yokoyama, Takushi
AU - Nishu, Keisuki
AU - Torii, Shunsuke
AU - Ikeda, Yoshio
AU - Watanabe, Tokuko
PY - 1997/8
Y1 - 1997/8
N2 - By adsorption of monosilicic acid on aluminum hydroxide, an amorphous aluminosilicate (AAS) of Si/Al ratio of 1/3 was formed. When the AAS was heated to 1000°C, mullite (3Al2O3 · 2SiO2) crystallized directly without the formation of a spinel phase. It was clearly evidenced that correct adjustment of three factors, the Si/Al ratio, the proportion of 4- and 6-coordinated aluminums, and the single environment of a SiO4-4 unit (no Si-O-Si bond), is important for the direct mullitization from AAS.
AB - By adsorption of monosilicic acid on aluminum hydroxide, an amorphous aluminosilicate (AAS) of Si/Al ratio of 1/3 was formed. When the AAS was heated to 1000°C, mullite (3Al2O3 · 2SiO2) crystallized directly without the formation of a spinel phase. It was clearly evidenced that correct adjustment of three factors, the Si/Al ratio, the proportion of 4- and 6-coordinated aluminums, and the single environment of a SiO4-4 unit (no Si-O-Si bond), is important for the direct mullitization from AAS.
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U2 - 10.1557/JMR.1997.0283
DO - 10.1557/JMR.1997.0283
M3 - Article
AN - SCOPUS:0031209987
SN - 0884-2914
VL - 12
SP - 2111
EP - 2116
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 8
ER -