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题名: Relationship between lattice mismatch and ionic conduction of grain boundary in YSZ
作者: Ye, Fei1, 2;  Yin, Chun Yu2;  Ou, Ding Rong3;  Mori, Toshiyuki4
关键词: Yttria-stabilized zirconia ;  Grain boundary ;  Ionic conduction ;  Mismatch
刊名: PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
发表日期: 2014-02-01
DOI: 10.1016/j.pnsc.2014.01.007
卷: 24, 期:1, 页:83-86
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Materials Science, Multidisciplinary ;  Multidisciplinary Sciences
研究领域[WOS]: Materials Science ;  Science & Technology - Other Topics
英文摘要: The grain boundary plays an important role in the electrical behaviors of solid oxide electrolytes for solid state fuel cells. To reveal the relationship between the structure and the ionic conductivity of grain boundary, the conductive properties of {1 1 1} and {1 1 0} twist grain boundaries in 8 mol% yttria-stabilized zirconia have been examined. These boundaries have a series of Sigma values defined by the coincident site lattice model. It has been found that the activation energy of {1 1 1} twist grain boundary increases and then decreases with the Sigma value, while that of the {1 1 0} boundary shows an opposite trend. It is suggested that the properties can reflect the balance of the effects of lattice mismatch on the diffusion ability of oxygen vacancies and the segregation of oxygen vacancies and Y3+ ions. Therefore, the properties in polycrystalline electrolyte can be adjusted by controlling the grain boundary structures. (C) 2014 Chinese Materials Research Society. Production and hosting by Elsevier B.V. All rights reserved.
关键词[WOS]: CUBIC ZIRCONIA BICRYSTAL ;  STABILIZED-ZIRCONIA ;  DOPED ZIRCONIA ;  SPACE-CHARGE ;  RESISTIVITY ;  SIGMA=3
语种: 英语
WOS记录号: WOS:000334741800014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145441
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Liaoning, Peoples R China
2.Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beans, Dalian 116024, Liaoning, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Liaoning, Peoples R China
4.Natl Inst Mat Sci, Battery Mat Unit, Fuel Cell Mat Grp, Tsukuba, Ibaraki 3050044, Japan

Recommended Citation:
Ye, Fei,Yin, Chun Yu,Ou, Ding Rong,et al. Relationship between lattice mismatch and ionic conduction of grain boundary in YSZ[J]. PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL,2014,24(1):83-86.
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