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Grain-boundary effect in zirconia stabilized with yttria and calcia by electrical measurements
Alternative TitleMater. Sci. Eng. B-Solid State Mater. Adv. Technol.
Lin, Y; Liu, MS; Gong, JH; Chen, YF; Tang, ZL; Zhang, ZT
2003-10-15
Source PublicationMATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
ISSN0921-5107
Volume103Issue:2Pages:108-114
AbstractSix samples of mixed Y2O3/CaO doped ZrO2 electrolytes, with the same nominal chemical composition of (ZrO2)(0.90)-(Y2O3)(0.04)- (CaO)(0.06), were sintered at 1600 degreesC for 2, 4, 6, 8, 10 and 15 h, respectively, to make the grain size differ from sample to sample. The grain-boundary conductivity of each sample was measured using complex impedance method in the temperature range from 673 to 1073 K and experimental results were analyzed according to the Arrhenius equation. It was found that variation in grain size can produce large change in the activation energy for grain-boundary conduction, E-gb, and there exists a particular grain size at which E-gb reaches a maximum. Such an experimental phenomenon was then analyzed based on two existing models., the constriction resistance model and the brick layer model, and a possible explanation was proposed. (C) 2003 Elsevier B.V. All rights reserved.; Six samples of mixed Y2O3/CaO doped ZrO2 electrolytes, with the same nominal chemical composition of (ZrO2)(0.90)-(Y2O3)(0.04)- (CaO)(0.06), were sintered at 1600 degreesC for 2, 4, 6, 8, 10 and 15 h, respectively, to make the grain size differ from sample to sample. The grain-boundary conductivity of each sample was measured using complex impedance method in the temperature range from 673 to 1073 K and experimental results were analyzed according to the Arrhenius equation. It was found that variation in grain size can produce large change in the activation energy for grain-boundary conduction, E-gb, and there exists a particular grain size at which E-gb reaches a maximum. Such an experimental phenomenon was then analyzed based on two existing models., the constriction resistance model and the brick layer model, and a possible explanation was proposed. (C) 2003 Elsevier B.V. All rights reserved.
KeywordElectrical Measurements Grain-boundaries Ionic Conduction Doping Effects Ceramics
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/S0921-5107(03)00162-4
URL查看原文
Indexed BySCI
Language英语
WOS KeywordIONIC-CONDUCTIVITY ; TEMPERATURE-DEPENDENCE ; SOLID ELECTROLYTES ; MICROSTRUCTURES ; IMPEDANCE ; SYSTEM ; Y2O3
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Condensed Matter
WOS IDWOS:000185248800002
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5295
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
2.Tsing Hua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Lin, Y,Liu, MS,Gong, JH,et al. Grain-boundary effect in zirconia stabilized with yttria and calcia by electrical measurements[J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY,2003,103(2):108-114.
APA Lin, Y,Liu, MS,Gong, JH,Chen, YF,Tang, ZL,&Zhang, ZT.(2003).Grain-boundary effect in zirconia stabilized with yttria and calcia by electrical measurements.MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY,103(2),108-114.
MLA Lin, Y,et al."Grain-boundary effect in zirconia stabilized with yttria and calcia by electrical measurements".MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY 103.2(2003):108-114.
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