DISLOCATION ASSOCIATED INCUBATIONAL DOMAIN FORMATION IN LIGHTLY GADOLINIUM-DOPED CERIA

摘要：

Nano-sized incubational domain was observed in 10 at.% gadolinium-doped ceria (GDC) using high-resolution transmission electron microscopy. Dislocations are extensively observed in 10 at.% GDC instead of highly doped 25 at.% GDC, as the inverse relation of the intensity of domain formation in lightly and heavily doped ceria. With the FFT and IFFT analyzing, the incubational domains formed in 10 at.% GDC have different lattice spacing distance and orientation from the neighboring fluorite ceria matrix. Furthermore, similar dislocations are observed in the interface region between incubational domain and ceria matrix. Based on the experimental results, the formation mechanism of dislocation associated incubational domain in lightly gadolinium-doped ceria is rationalized.

关键词： Dislocation Domain Gadolinium-doped ceria Microstructure Solid ozide

作者: ZHIPENG LI TOSHIYUKI MORI FEI YE DING RONG OU JIN ZOU JOHN DRENNAN

作者单位: Fuel Cell Materials Center, National Institute for Materials Science, 1-1 Namiki,Tsukuba, Ibaraki 30 School of Engineering The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia School of Engineering The University of Queensland, St. Lucia, Brisbane, Queensland 4072, AustraliaB School of Engineering The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia Center for Microscopy and Microanalysis, The University of Queensland, St. Lucia, Brisbane, Queensla

会议类型: 国际会议

会议名称: The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)

会议地点: 武汉

会议语种:英文

页码: 912-921

在线出版日期: 2010-05-02（万方平台首次上网日期，不代表论文的发表时间）