首页|Effects of La3+ on microwave dielectric properties of (Pb0.5Ca0.5) (Fe0.5Ta0.5)O3 ceramics

Effects of La3+ on microwave dielectric properties of (Pb0.5Ca0.5) (Fe0.5Ta0.5)O3 ceramics

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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 εr and quality factor Qf values.Especially,when the doping content is 2％-5％,permittivity εr was above 75 and Qf values were 6 902-7 416 GHz.

(Pb0.5Ca0.5)(Fe0.5Ta0.5)O3 (PCFT)A-site substitutionmicrowave dielectric propertiesmicrostructure

JIANG Yong-chang、GU Ying、YANG Qiu-hong、KIM Eung-soo

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School of Materials Science and Engineering, Shanghai University, Shanghai 200072, P. R. China

Department of Materials Engineering, Kyonggi University, Suwon 442-760, Korea

Project supported by the National Natural Science Foundation of Chinaand the National High T nology Research and Development Program of China

60578041715-006-0060

2011

10.1007/s11741-011-0781-3

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2011.15(6)
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