摘要本论文选取(Zr0.8Sn0.2)TiO4(简称ZST)介质陶瓷作为研究对象，采用共沉淀法和水热法等液相法来合成ZST陶瓷材料。在共沉淀法制备ZST陶瓷中，分散剂PEG6000的加入能有效改善粉体的团聚；制备的粉体可在1480℃烧结成瓷，添加1wt%的ZnO后能降低陶瓷的烧结温度，但陶瓷的介电性能变差；添加Zn(NO3)2·6H2O或复合添加ZnO/Nb2O5均能得到介电性能优良的陶瓷(er=36～40，Q×f>50000GHz，τf=-10～10ppm/℃)。采用水热法合成陶瓷粉体，通过对水热反应条件的优化，发现当水热反应温度为200℃时，以TiO2为Ti的前驱物，矿化剂KOH浓度...Abstract Ceramics of (Zr0.8Sn0.2)TiO4, i.e., ZST, are chosen to be studied in this thesis. In the experiment, the ZST ceramics are prepared via wet-chemical routes. The aggregation of the particles can be prevented by the addition of PEG(6000) in the preparation of ZST powders via coprecitation method. The powders can be sintered at 1480℃ without any additive. With the addition of ZnO in 1...学位：理学硕士院系专业：化学化工学院化学系_无机化学学号：20032505
