中文摘要：

采用改进的工艺路线制备了化学计量比的Pb（Zn1/3Nb2/3）O3-PbTiO3-BaTiO3陶瓷，二氧化钛和碳酸钡不经过预烧，与预反应粉体混合球磨，成型后直接烧结，在1100℃和1120℃分别保温1h，2h，4h获得了100％钙钛矿结构的PZN-PT-BT陶瓷，最大密度7．418g／cm^3，最大介电常数7672。

英文摘要：

Stoichiometric Pb（Zn1/3Nb2/3）O3-PbTiO3-BaTiO3（PZN-PT-BT） perovskite ceramics prepared by modified processing route were investigated. Without calcination of TiO2 and BaCO3, a mixture of pre-reaction powders （PbO＋ZnNb2O6） and TiO2 and BaCO3 was pressed and sintered directly. Stoichiometric PZN-PT-BT ceramics sintered at 1100℃ and 1120℃ for 1, 2 and 4 h, respectively, with 100% perovskite phase were obtained. PZN-PT-BT ceramics with density 7.418 g/cm^3 （92.6% of theoretical density 8.01 g/cm^3） and dielectric constant Kmax, 7672 at 1 kHz were prepared. As far as energy-saving and time-saving of processing are concerned, it is a simplified and effective route to prepare PZN-PT-BT ceramics.