Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Cheng, J."'
Control of Stress Concentration in Surface-Mounted Multilayer Ceramic Capacitor Subjected to Bending
Publikováno v:
Journal of the American Ceramic Society. 97:1170-1176
Failure of surface-mounted multilayer ceramic capacitor (MLCC) results mainly from bending of the printed circuit board during handling and applications. Cracking of MLCC normally initiates at the junction of the bottom end of termination and the die
Publikováno v:
Journal of the American Ceramic Society. 93:4103-4109
Sintering behavior and dielectric performance of yttria/silica-coated BaTiO3 powders (YSBT) with the addition of Mn–Si–O glass (0–0.5 wt%) were investigated. The sample made with YSBT powder of 0.35 μm average particle size was fully sintered
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
Publikováno v:
Journal of the American Ceramic Society. 91:3976-3980
A photonic bandgap (PBG) crystal was established by self-assembly of monodispersed SiO2 submicrometer spheres. SiO2@Y2O5/or Y2SiO5:Eu3+ phosphors were then prepared by coating of Y3+ and Eu3+ at various concentrations on SiO2 PBG crystal templates. A
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. 89:1257-1265
We study the packing history and packing structures of photonic bandgap crystals consisting of mono-sized SiO2 particles. Simulations with combined actions of Brownian motion, inter-particle interactions, and imposed external fields are considered. N
Autor:
Wen-Cheng J. Wei, Rong-Yuan Wu
Publikováno v:
Journal of the American Ceramic Society. 88:1734-1739
This study establishes the relationship between homogeneity of tetragonal zirconia polycrystalline (TZP) feedstocks and the kneading time in order to understand the kneading energy adsorption during the de-agglomeration period of pre-existing ceramic
Autor:
Bang-Ying Yu, Wen-Cheng J. Wei
Publikováno v:
Journal of the American Ceramic Society. 88:2328-2331
An ultra-thin Ni-based metal used as the electrode layer in multilayer ceramic capacitor determines the dielectric performance of the capacitor. The warpage and the continuity of the inner electrode layers, and a dihedral angle between BaTiO3 layers
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