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; MBE; capacitance-voltage characteristics; current-votage characteristics; dielectric constant; MFIS structure 1 Introduction Ferroelectric random access memory (FeRAM) with a metal-ferroelectric... such as an inter-diffusion between ferroelectric films and Si[4] and formation of a SiO2 layer with low dielectric constant exist in this kind of device. So a metal–ferroelectric–insulator–semiconductor field......
constant value of 14.46, whereas the sample for AlN has the lowest dielectric constant value of 4.61.Key words:borosilicate glass; softening temperature; filler; microstructures; sintering; dielectric..., crystallization, microstructures and dielectric properties of the composites are found to strongly depend on the type of filler. The densification process of glass/ceramic composites with various......
segregation and electrical properties were investigated. The phase composition was determined by X-ray diffraction and the microstructure was examined by SEM. The dielectric constant, dielectric loss... ratio of Cu/Ca at the grain boundary increases, the dielectric constant increases and the dielectric loss decreases(40 < f < 10 kHz). In addition, when the synthesis time is shorter than 12 h......
without any major changes in the original structure. The temperature dependence,up to 250 ℃, of the conductivity, dielectric constant, dielectric loss, and loss tangent, at various frequencies of up... influence the conductivity, dielectric constant, and lossy mechanisms, which is probably due to the 3 d-AI ions and 4 f-Dy ions incorporated at different positions of both tetrahedral and octahedral......
without any major changes in the original structure. The temperature dependence,up to 250 ℃, of the conductivity, dielectric constant, dielectric loss, and loss tangent, at various frequencies of up... influence the conductivity, dielectric constant, and lossy mechanisms, which is probably due to the 3 d-AI ions and 4 f-Dy ions incorporated at different positions of both tetrahedral and octahedral......
a strong capability of absorbing electromagnetic waves. The dielectric constant and dielectric loss of AlN-SiC ceramics with the same content of SiC decreased as the frequency of electromagnetic waves...Dielectric properties of spark plasma sintered AlN/SiC composite ceramicsPeng Gao,Cheng-chang Jia,Wen-bin Cao,Cong-cong Wang,Dong Liang,Guo-liang XuSchool of Materials Science and Engineering......
of B2O3-Li2O glasses doped Ba1-xSrxTiO3 ceramics have been investigated systemat- ically. The temperature dependence dielectric constant and loss reveals that B2O3-Li2O glasses doped Ba1-xSrxTiO3...; the dielectric loss can be controlled about 0.0025; and the Q value is 286. These composite ceramics sintered at low temperature with suitable dielectric constant, low dielectric loss, relatively high......
and characteristics of PST ferroelectric ceramics were introduced and researched. Their dielectric and pyroelectric characteristics are as follows dielectric constant 104 order, low dielectric loss (lower than 3.0...Dielectric and Pyroelectric Characteristics of the Infrared Sensitive (Pb1-xSrx)TiO3 Ceramics王茂祥School of Management and Engineering, Nanjing University摘 要: contribute to the high dielectric constant.
Key words: glass-ceramic; niobate; dielectric properties; microstructure; dielectrics
... dependence of dielectric constant for samples treated at different crystallization temperatures for 3 h (b)
表2 铌酸盐系介电陶瓷及其介电常数
Table 2 Dielectric ceramics and dielectric constants......Pb2Nb2O7-NaNbO3-SiO2纳米复合材料的制备及其介电性能
AI导读
来源： 《中国有色金属学报2008年第2期》——杜军 唐群 罗君 董桂霞
constant is greatly enhanced. These effects may be attributed to the substitution actions of the rare earth element in perovskite lattice. At the doping content of 0.75%, the dielectric constant maximum of 23570 can be obtained. By adopting some proper additives, an excellent Y5V dielective material is obtained, and the room temperature properties are as follows: relative dielectric constant εRT≥23,000......
