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Ionic conduction in cubic zirconias at low temperatures
Alternative TitleJ. Mater. Sci. Technol.
Li, Y; Chen, YF; Gong, JH
2004
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume20Issue:1Pages:52-54
AbstractThe ac conductivities of Y2O3 or CaO-stabilized cubic zirconias were obtained from complex impedance measurements in the temperature range from 373 to 473 K. By analyzing the temperature-dependence of the resultant dc conductivities, it was shown that the activation energies for conduction are lower than those reported previously for the same materials at high temperatures. Comparing the activation energy data with the theoretically estimated values revealed that there may exist a certain, although very small, amount of free oxygen vacancies in the test samples at low temperatures and the conduction in the test samples is a result of the migration of these free oxygen vacancies.; The ac conductivities of Y2O3 or CaO-stabilized cubic zirconias were obtained from complex impedance measurements in the temperature range from 373 to 473 K. By analyzing the temperature-dependence of the resultant dc conductivities, it was shown that the activation energies for conduction are lower than those reported previously for the same materials at high temperatures. Comparing the activation energy data with the theoretically estimated values revealed that there may exist a certain, although very small, amount of free oxygen vacancies in the test samples at low temperatures and the conduction in the test samples is a result of the migration of these free oxygen vacancies.
KeywordIonic Conductivity Solid Electrolyte Zirconia Activation Energy
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordYTTRIA-STABILIZED ZIRCONIA ; SINGLE-CRYSTAL
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000220573700015
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/122111/4955
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
Li, Y,Chen, YF,Gong, JH. Ionic conduction in cubic zirconias at low temperatures[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2004,20(1):52-54.
APA Li, Y,Chen, YF,&Gong, JH.(2004).Ionic conduction in cubic zirconias at low temperatures.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,20(1),52-54.
MLA Li, Y,et al."Ionic conduction in cubic zirconias at low temperatures".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 20.1(2004):52-54.
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