(Ag_(1-x)Na_x)(Nb_(1-y)Ta_y)O_3陶瓷介电性能的研究  

STUDY ON THE DIELECTRIC PROPERTIES OF (Ag_(1-x)Na_x)(Nb_(1-y)Ta_y)O_3 CERAMIC

作　　者：陈长庆[1] 吴霞宛[1] 袁廷志[1] 朱征[1] 林曼红[1] 

机构地区：[1]天津大学电子信息工程学院,天津市300072

出　　处：《硅酸盐学报》2003年第3期308-311,共4页Journal of The Chinese Ceramic Society

摘　　要：对 (Ag1 -xNax) (Nb1 -yTay)O3陶瓷的介电性能进行了研究。通过改变Ag/Na和Nb/Ta的摩尔比 ,合成具有不同介电性能的陶瓷材料 ,适当的添加物可进一步改善陶瓷材料的性能。实验表明 :当Ag/Na及Nb/Ta的摩尔比均为 3/ 2时可使该陶瓷的介电损耗tgδ降低为 4×10 - 4 ,介电常数达到 34 0。The dielectrics property of (Ag_ 1-xNa_x)(Nb_ 1-yTa_y)O_3 has been studied. The molar ratios of Ag/Na and Nb/Ta is very important to dielectrics property in the ceramics. The dielectrics property can be improved by mixing proper dopant. It is suggested that the dielectric loss tgδ of the ceramics can be decreased to 4×10 -4, dielectric constant is 340, when the molar ratios of Ag/Na and Nb/Ta are the same of 3/2 . In addition, the loss can be decreased by procreating the precursor.

关 键 词：钽铌酸银钠 介电性能 前驱体 

分 类 号：TQ174[化学工程—陶瓷工业]