烧结温度对Zn-Nb共掺Ba(Zr0.1Ti0.9)O3陶瓷微结构与介电性能的影响
王艳，苗康康，王晓玲，胡登卫
摘要(Abstract)：
采用溶胶-凝胶法制备Y5V型Zn、Nb共掺杂Ba(Zr0.1Ti0.9)O3陶瓷，通过 XRD、SEM 等分析检测手段对样品进行表征。研究了烧结温度对陶瓷相组成、微观结构、介电性能及介电弛豫的影响。结果表明：样品为单一的四方相钙钛矿结构，随着烧结温度的增加，陶瓷晶粒尺寸与介电常数增大，弥散相变系数（γ）先增加后减小。当陶瓷的烧结温度为1 280 ℃时，陶瓷的平均晶粒尺寸约为3 ?m、密度（6.034 6 g/cm3）与γ（1.909 2）达到最大值，室温相对介电常数（εr）和介电损耗（tanδ）分别为14 849和0.37%。
关键词(KeyWords)： 溶胶-凝胶法；Ba(Zr0.1Ti0.9)O3基陶瓷；Y5V；介电性能；介电弛豫；烧结温度
基金项目(Foundation): 陕西省教育厅项目（No. 16JK1040）；宝鸡文理学院校级重点项目(No. ZK16054)；宝鸡市科技厅项目（No. 16RKX1-4）
作者(Author): 王艳，苗康康，王晓玲，胡登卫
DOI: 10.14106/j.cnki.1001-2028.2017.03.004
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