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Dielectric Properties of Ag(Nb_(1-x)Ta_x)O_3 and Bi_2O_3 Doped Ag(Nb_(1-x)Ta_x)O_3 Ceramics 被引量:1
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作者 郭秀盈 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2007年第3期518-521,共4页
Dielectric properties of Ag(Nb1-xTa)O3 and Bi2O3 doped Ag(Nb1-xTax)O3 solid solutions were investigated. The results show that with the increase of Ta content (x), the sintering temperature increased, and the di... Dielectric properties of Ag(Nb1-xTa)O3 and Bi2O3 doped Ag(Nb1-xTax)O3 solid solutions were investigated. The results show that with the increase of Ta content (x), the sintering temperature increased, and the dielectric loss (tanδ) and the temperature coefficient (αc) decreased. Ag(Nb1-xa)O3 (x=0.4) ceramics sintered at 1 100℃ had the highest permittivity (516.8) and a lower tanδ (0.0021) at 1 MHz, and its temperature coefficient was about 191 ppm/℃. The sintering temperature of Ag(Nb1-xTa)O3 (x=0.4) was lowered by the addition of Bi2O3, and its dielectric properties were improved. Ag(Nb0.6Ta0.4)O3 ceramics with 2.5 wt% Bi203 addition presented the optimum dielectric properties (ε=566, tanδ= 0.0007 and αc≈0ppm/℃) (1 MHz), 展开更多
关键词 Ag(Nb1-xTa)O3 DOPING dielectric properties
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