上海大学学报（英文版）
上海大學學報（英文版）
상해대학학보（영문판）
JOURNAL OF SHANGHAI UNIVERSITY (ENGLISH EDITION)
2011年
6期
535-537
,共3页
(Pb0.5Ca0.5)(Fe0.5Ta0.5)O3 (PCFT)%A-site substitution%microwave dielectric properties%microstructure
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.
