Decrease of sintering temperature by CuO doping of the 0.8Pb(Mg1/3Nb2/3)O-3-0.2PbTiO(3) ceramics prepared by reaction-sintering method

作者：Fang, Bijun^*; Jiang, Na; Ding, Chenlu; Du, Qingbo; Ding, Jianning

来源：Physica Status Solidi A-Applications and Materials Science, 2012, 209(2): 254-261.

DOI：10.1002/pssa.201127486

• ceramics
• crystal structure
• CuO doping
• electrical properties
• phase transition
• reaction-sintering method

CuO-doped 0.8Pb(Mg1/3Nb2/3)O-3-0.2PbTiO(3) (0.8PMN-0.2PT) ceramics were prepared by the reaction-sintering method. X-ray diffraction (XRD) measurement, scanning electron microscopy (SEM) observation and density measurement confirmed that the CuO-doped 0.8PMN-0.2PT ceramics prepared by the reaction-sintering method with the addition of up to 5 mol% CuO and sintered over a wide sintering temperature range exhibit pure rhombohedral perovskite structure, rather homogeneous micromorphology and high relative density. As compared to the undoped 0.8PMN-0.2PT ceramics prepared by the same method, CuO proves to be an effective sintering aid, which can greatly decrease the sintering temperature of the 0.8PMN-0.2PT ceramics prepared by the reaction-sintering method, where high relative density can be obtained and the electrical properties are not deteriorated or improved of the synthesized 0.8PMN-0.2PT ceramics. The CuO doping content and sintering temperature exert great influences on the crystal structure, density and electrical properties of the 0.8PMN-0.2PT ceramics prepared by the reaction-sintering method.

• 出版日期2012-2
• 单位常州大学; 江苏大学