Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Cheng, J."'
Autor:
Ching-Hung Weng, Wen-Cheng J. Wei
Publikováno v:
Journal of the American Ceramic Society. 93:3124-3129
Nb2O5 and Bi2O3 powders were dispersed by anionic dispersants separately and followed by optimized colloidal processing steps to obtain the best mixing results. The influences of the dispersants were investigated by the measurements of zeta-potential
Autor:
Wen-Cheng J. Wei, Jerry C. C. Lin
Publikováno v:
Journal of the American Ceramic Society. 92:1926-1933
A glass with the eutectic composition 3MnO1.5–2SiO2 was used to simulate the formation of a liquid phase during sintering of BaTiO3. Two oxide additives (Mn2O3 and SiO2) performing various functions of the properties of BaTiO3 were investigated for
Autor:
Sung-En Lin, Wen-Cheng J. Wei
Publikováno v:
Journal of the American Ceramic Society. 91:1121-1128
Spherical indium (In) oxide in submicrometer size is considered as a practical material in photonic bandgap applications. To obtain narrow size distribution, systematic studies of different conditions such as precursor concentration, reaction tempera
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
Publikováno v:
Journal of the American Ceramic Society. 90:1709-1716
The specific system of interest is the polyacrylic acid (PAA) and (0001) α-Al2O3 surface, which was modeled and simulated by Cerius2 4.9 software with empirical potentials. The simulation predicted that the adsorbed conformations of PAA with a molec
Autor:
Wen-Cheng J. Wei, Ting-Yi Wu
Publikováno v:
Journal of the American Ceramic Society. 89:3846-3849
Pure Ba2Ti9O20 (BT29) was synthesized by a solid-state reaction in one step with various amounts of ZrO2 powder additive. The transformation kinetics of BT29 were investigated by quantitative X-ray diffractometry (XRD). The results show that stoichio
Publikováno v:
Progress in Nanotechnology
Submicrometer spherical particles of praseodymium (Pr)-doped strontium indate were synthesized by spray pyrolysis using ultrasonic nebulization. The morphology, crystalline structure, particle size, and size distribution were studied by X-ray diffrac
Autor:
Sung-En Lin, Wen-Cheng J. Wei
Publikováno v:
Journal of the American Ceramic Society. 89:527-533
Nano- or submicron In(OH)3 and In2O3 particles of different morphologies were synthesized from a nitrate solution by a homogeneous precipitation process. By using X-ray diffractometer, thermogravimetric analysis, transmission and scanning electron mi
Publikováno v:
Journal of the American Ceramic Society. 88:524-529
An amphoteric water-soluble copolymer, i.e., poly(acrylamide/(α-N,N-dimethyl-N-acryloyloxyethyl) ammonium ethanate) (PAAM/DAAE), was evaluated as a novel dispersant for aqueous BaTiO3 (BT) slurries. The dispersing property of this copolymer was exam
Autor:
Wen-Cheng J. Wei, Ming-Hung Lo
Publikováno v:
Journal of the American Ceramic Society. 80:886-892
A mixture of hexacarbonyl of chromium and molybdenum ((Cr,Mo)(CO)6) was used to deposit oxycarbide films on stainless steel at temperatures of 175°–450°C. Through the analysis of deposition kinetics in various temperature regions, the controlling