| Effects of La^3＋on microwave dielectric properties of（Pb0.5Ca0.5）（Fe0.5Ta0.5）O3ceramics |
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| 引用本文： | 江永长,顾莹,杨秋红,金应秀.Effects of La^3＋on microwave dielectric properties of（Pb0.5Ca0.5）（Fe0.5Ta0.5）O3ceramics[J].上海大学学报(英文版),2011,15(6):535-537. |
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| 作者姓名： | 江永长 顾莹 杨秋红 金应秀 |
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| 作者单位： | School of Materials Science and Engineering;Shanghai University;Department of Materials Engineering;Kyonggi University; |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No.60578041); the National High Technology Research and Development Program of China (Grant No.715-006-0060) |
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| 摘 要： | This work investigated the microwave dielectric properties of A-site substitution by rare earth La3+in(Pb0.5Ca0.5)(Fe0.5Ta0.5)O3(PCFT) system.A single perovskite phase was obtained only when the doping content was 2%.Suitable La3+ doping improved microwave dielectric performances.Excessive La3+doping caused the formation of secondary phase,which resulted in the decreasing of permittivity εrand quality factor Qfvalues.Especially,when the doping content is 2%-5%,permittivity εrwas above 75 and Qfvalues were 6...
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| 关 键 词： | 微波介电性能 低介电常数 La 钙钛矿相 质量因素 掺杂量 镧掺杂 稀土镧 |
Effects of La3+ on microwave dielectric properties of (Pb0.5Ca0.5)(Fe0.5Ta0.5)O3 ceramics |
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| JIANG Yong-chang,GU Ying,YANG Qiu-hong,KIM Eung-soo.Effects of La3+ on microwave dielectric properties of (Pb0.5Ca0.5)(Fe0.5Ta0.5)O3 ceramics[J].Journal of Shanghai University(English Edition),2011,15(6):535-537. |
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| Authors: | JIANG Yong-chang GU Ying YANG Qiu-hong KIM Eung-soo |
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| Institution: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China
2. Department of Materials Engineering, Kyonggi University, Suwon 442-760, Korea |
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| Abstract: | This work investigated the microwave dielectric properties of A-site substitution by rare earth La3+ in (Pb0.5Ca0.5) (Fe0.5Ta0.5)O3 (PCFT) system. A single perovskite phase was obtained only when the doping content was 2%. Suitable La3+ doping improved microwave dielectric performances. Excessive La3+ doping caused the formation of secondary phase, which resulted in the decreasing of permittivity ɛ
r and quality factor Q
f values. Especially, when the doping content is 2%-5%, permittivity ɛ
r was above 75 and Q
f values were 6 902–7 416 GHz. |
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| Keywords: | (Pb0 5Ca0 5)(Fe0 5Ta0 5)O3(PCFT) A-site substitution microwave dielectric properties microstructure |
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