中文摘要：

首先采用固相法合成了（Mg，Zn）2TiO4粉体，然后将钛酸丁酯水解制备出TiO2溶胶，再利用TiO2溶胶对已合成的（Mg，Zn）2TiO4粉体进行包覆。包覆后的粉体经500℃预烧后在1150℃烧结成瓷，采用XRD、SEM分别做了样品的物相和显微结构分析，测试结果表明：当TiO2，（Mg，Zn）2TiO4为1．1时，合成产物为纯的（Mg，Zn）TiO3相。在1MHz下测试了样品的介电性能，结果表明：当TiO2／（Mg，Zn）2TiO4为1．1，烧结温度为1150℃时，陶瓷介电性能最好。

英文摘要：

（Mg,Zn）2TiO4 powders have been synthesized by the conventional solidstate route.The （Mg,Zn）2TiO4 powders were coated by the TiO2 - sol which have been prepared by the hydrolyzation of butyl titanate. Then the （Mg,Zn）2TiO4 powders coated with TiO2 - sol were calcined at 500 ℃ .The specimens were sintered at 1 500 ℃ .The phases and structures were ananlyzed by XRD and SEM, respectively, which approved that the simplex （Mg,Zn）TiO3 phase was gained when TiO2/（Mg,Zn）2TiO4 = 1.1. The dielectric properties of specimens were measured at 1 MHz, the results show that The dielectric properties of specimens with TiO2/（ Mg,Zn）2 TiO4 = 1 . 1 are best when sintered at 1 150 ℃ .