采用传统的固相反应法制备CuO掺杂ZnNb2O6介质陶瓷,借助XRD、SEM和LCR测试仪,研究了CuO掺杂对ZnNb2O6介质陶瓷的烧结特性及介电性能的影响.结果表明,CuO掺杂能有效降低ZnNb2O6陶瓷的烧结温度,提高介电常数,优化频率温度系数.1050℃烧结掺杂1.0wt%CuO的ZnNb2O6陶瓷具有较好的综合介电性能:介电常数εr=34,介电损耗tanδ=0.00039,频率温度系数τf=-46.21×10-6/℃.
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