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024 7 _ |a 10.1149/1.1625948
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024 7 _ |a WOS:000187428800073
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024 7 _ |a 0013-4651
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024 7 _ |a 0096-4743
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024 7 _ |a 0096-4786
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024 7 _ |a 1945-7111
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024 7 _ |a 2128/2880
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037 _ _ |a PreJuSER-34062
041 _ _ |a eng
082 _ _ |a 540
084 _ _ |2 WoS
|a Electrochemistry
084 _ _ |2 WoS
|a Materials Science, Coatings & Films
100 1 _ |a Guo, X.
|b 0
|u FZJ
|0 P:(DE-Juel1)VDB518
245 _ _ |a Grain boundary space charge effect in Zirconia
260 _ _ |a Pennington, NJ
|b Electrochemical Society
|c 2004
300 _ _ |a J1 - J7
336 7 _ |a Journal Article
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440 _ 0 |a Journal of the Electrochemical Society
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500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a According to the space charge concept, oxygen vacancies are depleted in the grain boundary space charge layers of acceptor-doped ZrO2; whereas electrons are expected to accumulate in the space charge layers if present, leading to significant changes in the grain boundary electrical properties. In this work, electrons were introduced to 8 mol % TiO2 and 7.36 mol % Y2O3-codoped ZrO2 by annealing in the mixture of 2% H-2-Ar; as a result, the grain boundary arc disappeared, and the electrical conductivities increased considerably, especially for the sample with finer grain size. Both phenomena suggest highly conductive grain boundaries resulting from the accumulation of electrons in the space charge layers. (C) 2003 The Electrochemical Society.
536 _ _ |a Kondensierte Materie
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700 1 _ |a Ding, Y.
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773 _ _ |a 10.1149/1.1625948
|g Vol. 151, p. J1 - J7
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|t Journal of the Electrochemical Society
|v 151
|y 2004
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856 7 _ |u http://dx.doi.org/10.1149/1.1625948
|u http://hdl.handle.net/2128/2880
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