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Alternative TitleEffect of A-site substitution by Nd3+ on the microwave dielectric properties of (Pb0.5Ca0.5)(Fe0.5Nb0.5)O-3 ceramics
杨秋红; 金应秀; 徐军; Yang, QH (reprint author), Shanghai Univ, Sch Mat Sci & Engn, Shanghai 201800, Peoples R China
Source Publication无机材料学报
Other AbstractMicrowave dielectric properties of A-site substitution by Nd3+ in (Pb0.5Ca0.5)(Fe-0.5 Nb-0.5)O-3 system were investigated. Microwave dielectric properties of [(Pb0.5Ca0.5)(1-x)Nd-x](Fe-0.5 Nb-0.5)O-3 (PCNFN) were improved because the solid solution of small amount of surplus Nd3+ with (Pb,Ca)(2+) could eliminate oxygen vacancies. A single perovskite phase was formed when x = 0.02. Surplus Nd3+ resulted in the formation of secondary phase (pyrochlore), which can deteriorate to the microwave dielectric properties of PCNFN ceramics. The decreasing of dielectric properties with x content was mainly caused by the formation of pyrochlore. Dielectric constant was above 100 and quality factor Qf values were 5385similar to5797GHz as x = 0.02similar to0.05. Temperature coefficient of resonant frequency (TCF) was changed from positive to negative with the increase of x content.
Indexed BySCI
WOS IDWOS:000185727900014
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Document Type期刊论文
Corresponding AuthorYang, QH (reprint author), Shanghai Univ, Sch Mat Sci & Engn, Shanghai 201800, Peoples R China
Affiliation1.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 201800, Peoples R China
2.Kyonggi Univ, Dept Mat Engn, Suwon 442760, South Korea
3.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
杨秋红,金应秀,徐军,等. Nd~(3+)A位置换对(Pb_(0.5)Ca_(0.5))(Fe_(0.5)Nb_(0.5))O_3陶瓷微波介电[J]. 无机材料学报,2003,18(5):1051.
APA 杨秋红,金应秀,徐军,&Yang, QH .(2003).Nd~(3+)A位置换对(Pb_(0.5)Ca_(0.5))(Fe_(0.5)Nb_(0.5))O_3陶瓷微波介电.无机材料学报,18(5),1051.
MLA 杨秋红,et al."Nd~(3+)A位置换对(Pb_(0.5)Ca_(0.5))(Fe_(0.5)Nb_(0.5))O_3陶瓷微波介电".无机材料学报 18.5(2003):1051.
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