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pro vyhledávání: '"Cheng, J."'
Autor:
Bang-Ying Yu, Wen-Cheng J. Wei
Publikováno v:
Journal of the American Ceramic Society. 91:595-598
Gradient, porous alumina ceramics were prepared with the characteristics of microsized tabular α-Al2O3 grains grown on a surface with a fine interlocking feature. The samples were formed by spin-coating diphasic aluminosilicate sol on porous alumina
Autor:
Wen-Cheng J. Wei, John W. Halloran
Publikováno v:
Journal of the American Ceramic Society. 71:166-172
Aluminosilicate gels with compositions Al2O2/SiO2 and 2 were prepared by gelling a mixture of colloidal pseudo-boehmite and a silica sol prepared from acid-hydrolyzed Si(OC2H5)4. Upon heating the pseudo-boehmite transforms to γ-Al2O3 around 400°C,
Autor:
Wen-Cheng J. Wei, John W. Halloran
Publikováno v:
Journal of the American Ceramic Society. 71:581-587
The formation of mullite in diphasic aluminosilicate gels of stoichiometric composition was studied by quantitative X-ray diffraction (QXRD) and electron microscopy (AEM and SEM). The transformation is preceded by an incubation time which is apparent