Preparation of Ph(Zn1/3Nb2/3)O3-based Diphasic Ceramics with X7R Character by Particle-coating Method
颗粒包覆法制备X7R特性PZN基复相陶瓷

A novel sol-gel particle-coating technique was developed to form a thin glassy layer on the surfaceof PZN particles. Two types of powders with different Curie temperatures were used as hightemperature constituent and low-temperature one to prepare PZN--based composite ceramics. APZN-based diphasic ceramic with X7R character and high dielectric constant was successfully obtained at low sintering temperature. The results show that the particle-coating method is effectiveto lower sintering temperature of the composite ceramics and suppress the reaction between thetwo starting constituents.