TY - JOUR
T1 - PREPARATION OF MULLITE POWDER BY CALCINATION OF THE PRODUCTS HYDROTHERMALLY TREATED FROM MIXED ALKOXIDE OR MIXED SOL.
AU - Suzuki, Matsuo
AU - Hiraishi, Sun ichi
AU - Yoshimura, Masahiro
AU - Somiya, Shigeyuki
PY - 1984/12/1
Y1 - 1984/12/1
N2 - Mullite powders were obtained by calcination of the products hydrothermally treated from mixed alkoxide or mixed sol, containing Al//2O//3:SiO//2 equals 3:2 (molar ratio). Pseudoboehmite-like phase, which contained both Al and Si components, was obtained by the hydrothermal treatment of mixed alkoxide or mixed sol, under 50 MPa at 300-400 degree C for 2 h. The pseudoboehmite-like phase particles from alkoxide were finer and more homogeneous than those from sol. The reaction among Al//2O//3, SiO//2 and H//2O was promoted to form aluminosilicates by the hydrothermal treatment under 50 MPa at 500-600 degree C for 2 h, using sol as a starting material.
AB - Mullite powders were obtained by calcination of the products hydrothermally treated from mixed alkoxide or mixed sol, containing Al//2O//3:SiO//2 equals 3:2 (molar ratio). Pseudoboehmite-like phase, which contained both Al and Si components, was obtained by the hydrothermal treatment of mixed alkoxide or mixed sol, under 50 MPa at 300-400 degree C for 2 h. The pseudoboehmite-like phase particles from alkoxide were finer and more homogeneous than those from sol. The reaction among Al//2O//3, SiO//2 and H//2O was promoted to form aluminosilicates by the hydrothermal treatment under 50 MPa at 500-600 degree C for 2 h, using sol as a starting material.
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M3 - Article
AN - SCOPUS:0021693544
VL - 92
SP - 320
EP - 327
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 6
ER -