用共沉淀的方法制备了一系列ZrxTi1-xO4 (0.4≤x≤0.6)纳米粉,XRD物相分析为ZrTiO4固溶体,TEM观察粒子粒径为20~30 nm.通过制陶实验对该系列固溶体的烧结特性、形貌及介电性能进行了研究.结果表明,TiO2含量影响固溶体的最佳烧结温度,在相同的烧结温度下,TiO2含量越高,瓷体的相对密度越低,晶粒越大.该材料有很好的频率、温度稳定性,其介电性能与组成和瓷体的相对密度有关.介电常数和品质因数随瓷体相对密度增大而增大.当材料的相对密度高于90%时,随着TiO2含量增加,其介电常数增大,而品质因数降低.
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