CuO-MoO_3联合添加对BZT结构和性能的影响  

Effect of CuO-MoO_3 Additions on Structure and Microwave Dielectric Properties of BZT Ceramics

作　　者：康利平[1] 沈波[1] 张良莹[1] 姚熹[1] 

机构地区：[1]同济大学功能材料研究所,上海200092

出　　处：《压电与声光》2005年第4期404-407,共4页Piezoelectrics & Acoustooptics

基　　金：国家高新技术发展计划基金资助项目(2001AA325110);国家重点基础研究计划基金资助项目(2002CB613302);上海市重点学科建设基金项目资助

摘　　要：研究了在三元系微波介质陶瓷B i2O3-ZnO-T a2O5的单斜类锆钙钛矿相化合物中添加不同量的CuO-M oO3的混合物对材料结构和微波介电性能的影响。研究发现,添加CuO-M oO3能有效地降低烧结温度约100°C,但是材料结构允许的添加范围很小,随着添加量增多,样品中出现第二相,介电性能和微波性能也随之恶化。添加量最少的1#样品仍然保持单斜类锆钙钛矿结构,品质因数Q值约为730,保持较好的介电性能。Effect of CuO-MoO3 additions on structure and microwave dielectric properties of BZT monoclinic zirconolite ceramics were investigated. The addition of CuO-MoO3 as a sintering agent to Bi2O3-ZnO-Ta2O5 significandy lowered the sintering temperature about 100 ℃. But the addition range without phase transition was very limited. The second phase existed and microwave properties were deteriorated gradually with the increase of addition. The sample 1^# with the least addition had a high quality factor-Q about 730 and monoclinic zirconolite structure.

关 键 词：Bi2O3-ZnO-Ta2O5系陶瓷 单斜类锫钙钛矿 烧结温度 微波介电性能 

分 类 号：TH145[一般工业技术—材料科学与工程]