烧结助剂对(Bi_(1.5)Zn_(1.0)Nb_(1.5))O_7陶瓷性能的影响  

Effects of Sintering Additives on Properties of (Bi_(1.5)Zn_(1.0)Nb_(1.5))O_7 Microwave Dielectric Ceramics

作　　者：王茹玉[1] 黄金亮[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《电子元件与材料》2005年第1期32-34,共3页Electronic Components And Materials

基　　金：河南省高校创新人才基金资助项目(2001-213)

摘　　要：采用传统的固相反应法制备陶试样,借助XRD、SEM和LCR测试仪,研究了烧结助剂对(Bi1.5Zn1.0Nb1.5)O7微波介质陶瓷的烧结特性和介电性能的影响。实验结果表明,添加一定量的CuO、V2O5或两者的混合物后,陶瓷试样的烧结温度降到950℃以下,制备的试样具有良好的介电性能。介电常数εr为152～168,介质损耗tgδ为0.003～0.007(2MHz)。添加烧结助剂后的陶瓷试样的主晶相仍为焦绿石结构,但还出现少量Zn3Nb2O8和ZnO相。Bi1.5Zn1.0Nb1.5)O7 ceramic samples were prepared by solid state reaction and were explored by XRD,SEM and LCRtesting analyzer.The effects of sintering additives on the sinterability and dielectric properties of (Bi1.5Zn1.0Nb1.5)O7 were investigated. The experiment results show that the sintering temperature of ceramic samples is lower than 950℃ and the ceramic samples with dielectric constant εr =152～168 and dielectric loss tgδ = 0.003～0.007(2 MHz) are obtained. The major phase of (Bi1.5Zn1.0Nb1.5)O7 ceramics which have sintering additives is pyrochlore, but Zn3Nb2O8 and ZnO phase is found。

关 键 词：无机非金属材料 介质陶瓷 烧结助剂 烧结温度 介电性能 

分 类 号：TM28[一般工业技术—材料科学与工程]