图书来源:二元合金相图及中间相晶体结构 二元合金相图及中间相晶体结构
作 者:唐仁政 田荣璋
出版时间:2009-05
定 价:320元
图书ISBN:978-7-81105-831-4
出版单位:中南大学出版社
LI Zhaofeng1,LI Zhenrong2* (1.School of Material Science&Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China; 2.Electronic Materials Research Laboratory,Xi’an Jiaotong University,Xi’an 710049,China)
摘 要:The solid solution characteristics of Pb(B 1/3 Nb 2/3 )O 3 -based(B=Zn2+,Mg2+,Ni2+)composite ceramics prepared by two-phase mixed-sintering method were developed based on dielectric measurements. Results show that there are double dielectric peaks for PZN-based composite ceramic,implying two phases coexist.However single dielectric peak was presented in PMN-and PNN-based composite ceramics, respectively.It is indicated that obvious solid solution reaction exists during the sintering process of these two systems.The effects of B-site ion difference on the solid solution characteristics were discussed by crystal chemistry.SEM was employed to investigated the microstructures of composite ceramics.The influences of solid solution reaction on grain growth were discussed.
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