Transport Properties of superionic Conducting Glasses (AgX)0.4(Ag2O)0.3(GeO2)0.3(X=I,Br,Cl)
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- Kang Shinchul
- Institute for Advanced Materials Processing, Tohoku University
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- Saito Masatoshi
- Institute for Advanced Materials Processing, Tohoku University
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- Jacob K. Thomas
- Materials Research Centre and Department of Metallurgy, Indian Institute of Science
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- Waseda Yoshio
- Institute for Advanced Materials Processing, Tohoku University
書誌事項
- タイトル別名
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- Transport Properties of Superionic Conducting Glasses (AgX)<SUB>0.4</SUB>(Ag<SUB>2</SUB>O)<SUB>0.3</SUB>(GeO<SUB>2</SUB>)<SUB>0.3</SUB> (X=I, Br, Cl)
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In order to identify the dominant mechanism of ionic conduction, the electrical conductivity and ionic mobility of the glasses (AgX)0.4(Ag2O)0.3(GeO2)0.3 (X=I, Br, Cl) were measured separately in the temperature range from 293 to 393 K by coupling the AC technique with the TIC method. Electronic conductivity was also measured at 293 K by the Wagner polarization method. The total electrical conductivity of these glasses was found to be as high as 10−1 Ω−1 m−1, and the mobility about 10−6 m2 V−1 s−1. The variation of total electrical conductivity and mobility at constant temperature and composition with the type of halide occurred in the sequence, Cl<Br<I. For each composition, both conductivity and mobility increased with temperature. The mobile ion concentration was found to be about 1023 m−3 at 293 K, and it was insensitive to the type of halide as well as temperature. The results suggest that the change in ionic conductivity with the temperature and the type of halide present is mainly attributable to the change in ionic mobility rather than carrier concentration. Moreover, the electronic conductivity was found to be about 10−6 Ω−1 m−1 at 293 K. Thus, the electronic contribution to the total conductivity is negligibly small.
収録刊行物
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- Materials Transactions, JIM
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Materials Transactions, JIM 41 (12), 1670-1674, 2000
社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204246029824
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- NII論文ID
- 10005354755
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- NII書誌ID
- AA10699969
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- COI
- 1:CAS:528:DC%2BD3MXhtlWms7o%3D
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- ISSN
- 2432471X
- 09161821
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- NDL書誌ID
- 5883220
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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