Ba_(0.6)Sr_(0.4)TiO_3-ZnNb_2O_6复相微波介质陶瓷的结构与介电性能研究  

Microstructure and dielectric properties of Ba_(0.6)Sr_(0.4)TiO_3-ZnNb_2O_6 composite ceramic

作　　者：王通[1] 高峰[1] 胡国辛[1] 李真[1] 田长生[1] 

机构地区：[1]西北工业大学材料学院,陕西西安710072

出　　处：《功能材料》2009年第8期1309-1312,共4页Journal of Functional Materials

基　　金：西安应用材料创新基金资助项目(XA-AM-200808);西北工业大学科技创新基金资助项目(2006CR11)

摘　　要：以Ba0.6Sr0.4TiO3为基体材料,采用传统陶瓷制备工艺,制备了Ba0.6Sr0.4TiO3-ZnNb2O6(简称BSTZ)复相微波介质陶瓷。结果表明,BSTZ复相陶瓷可在1200℃烧结成瓷,烧结温度明显低于Ba0.6Sr0.4TiO3陶瓷的烧结温度,并反应生成新相BaNb3.6O10。在室温低频下,随ZnNb2O6含量的增加,BSTZ复相陶瓷的介电常数下降;在1.6kV/mm的直流偏压下,各BSTZ复相陶瓷的可调性随ZnNb2O6添加量增加而减小。Ba0.6 Sr0.4 TiO3-ZnNb2 O6 （BSTZ） composite ceramics were prepared from Ba0.6 Sr0.4 TiO3 by traditional ceramic processing. The result of XRD, SEM and EDS shows that BSTZ composite ceramics could be sintered at 1200℃, the sintered temperature lower than Ba0.6 Sr0.4, TiO3, and BaNb3.6 O10 is detected as the secondly phase. With the increasing of ZnNb2O6 content, the dielectric constant decrease at 1-100kHz;the tunahilities of the BSTZ composite ceramics deetease with the increasing of ZnNb2 O6 content at 1.6kV/mm.

关 键 词：钛酸锶钡 铌酸锌 介电性能 可调性 

分 类 号：TN384[电子电信—物理电子学]