PbO-B_2O_3-CuV_2O_6掺杂对(Pb,Ca,La)(Fe,Nb)O_3陶瓷微波介电性能的影响  

Effect of PbO-B_2O_3-CuV_2O_6 Glass on the Microwave Dielectric Properties of(Pb,Ca,La)(Fe,Nb)O_3 Ceramics

作　　者：顾莹[1] 江永长[1] 杨秋红[1] 金应秀 

机构地区：[1]上海大学材料学院,上海200072 [2]韩国京畿大学陶瓷工程系

出　　处：《压电与声光》2011年第2期251-253,257,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(60578041);国家"八六三"基金资助项目(715-006-0060)

摘　　要：研究了PbO-B2O3-CuV2O6(PBC)玻璃对(Pb,Ca,La)(Fe,Nb)O3(PCLFN)陶瓷微波介电性能的影响。当纯PCLFN陶瓷在1 150℃烧结,介电常数rε=103,品质因数与频率之积Qf=5 640 GHz,频率温度系数τf=7.1×10-6/℃。PBC玻璃添加剂能降低PCLFN陶瓷的烧结温度到1 050℃左右,同时能保持良好的介电性能。随着PBC玻璃添加量的质量分数从1.0%增加2.0%,陶瓷的Qf值减小。掺杂w(PBC)=1%玻璃、在1 050℃烧结的陶瓷样品,能获得良好的微波介电性能为Qf=5 392 GHz,τf=8.18×10-6/℃,rε=101。The effects of PbO-B2O3-CuV2O6（PBC） glass on the microwave dielectric properties of（Pb,Ca,La）（Fe,Nb）O3（PCLFN） ceramics have been investigated in this work.When the pure PCLFN ceramics were sintered at 1 150 ℃,the dielectric constant εr of 103,Qf of 5 640 GHz and τf of 7.1×10-6/℃ have been obtained.The sintering temperature of the ceramic specimens with the PBC glass additives was reduced to 1 050 ℃ without the degradation of microwave dielectric properties.The Qf value was decreased with the increasing PBC content from 1.0% to 2.0%.For the specimens with 1.0% of PBC glass sintered at 1 050 ℃ for 3 h,εr,Qf and τf were 101,5 392 GHz and 8.18×10-6/℃,respectively.

关 键 词：PbO-B2O3-CuV2O6 (Pb Ca La)(Fe Nb)O3 低温烧结 微波介电性能 

分 类 号：TN305.3[电子电信—物理电子学] TQ174[化学工程—陶瓷工业]