%0 Journal Article
%T Activation Energy for Conduction in Y2O3-Stabilized Zirconia<br>Y2O3稳定ZrO2材料的电导活化能
%A LI Ying
%A GONG Jiang-Hong
%A XIE Yu-Sheng
%A TANG Zi-Long
%A CHEN Yun-Fa
%A ZHANG Zhong-Tai
%A <br>李英
%A 谢裕生
%A 陈运法
%A 龚江宏
%A 唐子龙
%A 张中太
%J 无机材料学报
%D 2002
%I Science Press
%X The ac conductivity spectra were measured in the temperature range from 313 to 473K for a Y2O3-stabilized ZrO2 (YSZ). Then the dc conductivity was deduced and its temperature dependence analyzed. It was shown that, at low temperatures, the activation energy for conduction in YSZ increases with increasing temperature. This experimental phenomenon is rather different with those observed previously in the high temperature range in which the activation energy was found to decrease with increasing temperature. Based on the analyses of the mechanisms for disassociation and migration of oxygen vacancies in the materials, a reasonable explanation for the temperature dependence of the activation energy for conduction in YSZ was proposed.
%K ionic conductivity
%K activation energy for conduction
%K defect association
%K ZrO2-based solid electrolytes<br>ZrO2基固体电解质
%K 离子电导率
%K 电导活化能
%K 缺陷缔合
%K 二氧化锆
%K 氧化钇
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=9809B7F0FFA8F717&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=E158A972A605785F&sid=A9C78B2A6AAEEAAD&eid=43AADF4B53A8BF6F&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=3&reference_num=18