共搜索到9465条信息，每页显示10条信息，共947页。用时：0小时0分0秒353毫秒
has to be carried out at above 1 800 ℃ due to the extremely low diffusivity of impurities[15]. The aim of this work was to investigate the chemical composition, microstructure and dielectric property... Aluminum doping and dielectric properties of silicon carbide by CVD LI Zhi-min(李智敏), SU Xiao-lei(苏晓磊), LUO Fa(罗 发), ZHU Dong-mei(朱冬梅), ZHOU Wan-cheng(周万城) State Key Laboratory......
a scanning electron microscope (SEM, JEOL JSM-6400, Tokyo, Japan). The microwave dielectric property measurements were carried out using the transmission resonant cavity technique in an Au-coated brass...J. Cent. South Univ. (2012) 19: 1202-1205 DOI: 10.1007/s11771-012-1129-8 Low-temperature sintering and microwave dielectric properties of Li2MgTi3O8 ceramics doped with BaCu(B2O5) BAO Yan(包燕)1, CHEN......
-ceramics is substituted by Sr, whose ionic radius and property are much like those of Pb and Ba, the dielectric properties including dielectric constant, dielectric loss, temperature dependence and DC field... Structural characteristics and dielectric properties of glass-ceramic nanocomposites of (Pb,Sr)Nb2O6-NaNbO3-SiO2 WANG Lei(王 磊), ZHANG Qing-meng(张庆猛), DU Jun(杜 军) Advanced Electronic Materials......
and indicated the importance of microstructure of (Cr, Fe)7C3 on microwave dielectric properties of HCFCP. Besides (Cr, Fe)7C3, CrFe also has been investigated to concern the magnetic property rather... in permeability, the dielectric property is still a key point in current paper. For the mechanism of dielectric properties at optical frequencies, it’s acknowledged of electronic transitions from......
La Doping Effect on the Dielectric Property of Barium Strontium Titanate Glass-CeramicsJichun ChenShenyang Research and Development Centre for Advanced Materials,Institute of Metal Research, Chinese...-quenching technique followed by controlled crystallization. The microstructures of crystallized samples were examined by X-ray diffraction and scanning electron microscopy. Dielectric properties were also......
A Method to Adjust Dielectric Property of SiC Powder in the GHz RangeXiaolei Su1), Jie Xu1), Zhimin Li2), Junbo Wang1), Xinhai He1), Chong Fu1) and Wancheng Zhou3) 1) College of Mechanical &.... The paper presents a method to adjust dielectric property of SiC powders in the GHz range.关键词:......
Microstructure and Dielectric Property of 3D BNf/Si3N4 Fabricated by CVI Process李建平1,成来飞1,YE Fang1,LIU Yongsheng1,YIN Xiaowei1,ZHANG Mingxia21. Science and Technology on Thermostructural Composite... precursor at 800 oC. The densification process, microstructure and dielectric properties of 3D BNf/Si3N4 composites were investigated. The results indicated that 3D BNf/Si3N4 was successfully fabricated......
Effect of Gadolinium Substitution on Dielectric Properties of Bismuth Ferrite Fang Kun1,Chang Fanggao1,Qin Ping1,Zeng Qijun1,Song Guilin1 (1.College of Physics and Information Engineering, Henan... out to characterize the crystal structure and to detect any possible impurities existing in these ceramics. Frequency dependence of dielectric properties of Bi1-xGdxFeO3 samples at room temperature......
Effects of synthesis technique on dielectric properties of CaCu3Ti4O12 ceramicA. RAJABTABAR-DARVISHI1, LI Wei-li1, O. SHEIKHNEJAD-BISHE2, WANG Li-dong1, LI Xiao-liang1, LI Na1, FEI Wei-dong1, 3(1... and sintering time. The impedance spectrum measurement results show that both the dielectric constant and dielectric loss have a weak frequency dependence over large frequency region of 50 Hz to 100 kHz......
density (3.7 g/cm3). As the typical representative of low dielectric permittivity microwave dielectric ceramic, Al2O3 has perfect dielectric permittivity property, especially its low dielectric loss... Trans. Nonferrous Met. Soc. China 22(2012) 111-116 Effect of MoSi2 content on dielectric and mechanical properties of MoSi2/Al2O3 composite coatings WU Zhi-hong, ZHOU Wan-cheng, LUO Fa, ZHU Dong-mei......
