Electrical Properties and Grain Growth Kinetics of PZN-based Ceramics Using Microwave Sintering

作     者：M.B.Suresh CHOU Chen-chia 

作者机构：Advanced Ceramics LaboratoryDepartment of Mechanical EngineeringNational Taiwan University of Science and TechnologyTaipei-10672China 

出 版 物：《材料科学与工程学报》 (Journal of Materials Science and Engineering)

年 卷 期：2007年第25卷第6期

页      面：878-882,891页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：电学性质 晶粒生长动力学 微波烧结 活化能 扩散 铁电体 制陶术 

摘      要：Effectiveness of microwave sintering process through investigation of microstructural characteristics and electrical properties of x(0.94PbZn_ 1/3Nb_ 2/3O_3 + 0.06BaTiO_3)+(1-x)PbZr_yTi_ 1-yO_3(PBZNZT)ceramics with x=0.6 and y=0.52 was *** relative density of 95% was achieved with sintering at 800℃ for 2 *** small grain growth exponents indicate how easy the grain growth in these materials sintered using microwave *** growth rate increases abruptly and is higher than that of conventional sintering at a temperature higher than 1050℃.This is attributed to the lower activation energy and higher grain boundary *** activation energy required for the grain growth is found to be 132kJ/*** remanent polarization(Pr=50.1μC/cm2)and increase in remanent polarization with sintering temperature are observed in microwave sintering process when compared to that of conventional sintering process,due to fast increase in grain growth rate and homogeneity in the *** results indicate lower sintering energy and reduction of PbO pollution in the working environment by microwave sintering process.