中文摘要：

以1%（质量分数）CuO为烧结助剂。采用固相合成法制备了（1-x）Ca0.6La0.27TiO3＋xCeO2单纯和复合微波介质陶瓷材料。研究了此体系陶瓷的微观结构和微波介电性能。研究表明：当x从0增加到1时，体系的相对介电常数εr从111．2线性降低到22．5；谐振频率温度系数即从τf从x=0时的正值＋297.8×10^-6/℃线性变化为x=1的负值-54．2×10^-6/℃；而无载品质因数与谐振频率乘积g值则呈非线性增加。当x=0．85，且在1400℃烧结，可获得εr=32．2，Qf=6682GHz，τf=＋5×10^-6/℃的新型微波介质陶瓷。

英文摘要：

Simple and complex microwave dielectric ceramics of （1-x）Ca0.6La0.27TiO3＋xCeO2 were prepared by conventional solid-state reaction method with 1% in mass CuO as a sintering additive. The microstrucmres and microwave dielectric properties of the serial ceramics were investigated. The results show that the dielectric constant εr decreases linearly from 111.2 to 22.5 as the x value increases from 0 to 1 and the temperature coefficient of resonance frequency rf also varies linearly from a positive value of ＋297.8×10^-6/℃ at x=0 to a negative value of-54.2×10^-6/℃ at x=1. Also, as the x value increased, the product of unloaded quality factor and resonance frequency Qf of the ceramics increased nonlinearly. When the ceramics with x=0.85 were sintered at 1 400℃, it had a relative dielectric constant er of 32.2, a Qfvalue of 6 682 GHz and a near zero rf value of 5× 10^-6/℃.