Abstract
The results of electrical conductivity measurements on ZrO2: Sc (ScSZ) ceramics as a function of oxygen activity and temperature are presented. The influence of the microstructure on electrical transport is discussed and the experimental data for dense microcrystalline specimens have been compared with those obtained for dense nanocrystalline thin films. From these results the electronic and ionic contribution to the electrical transport has been determined and correlated with microstructure. It has been found that nanocrystalline ScSZ films possess quite different nonstoichiometry compared with that observed for microcrystalline specimens in the fact that the electronic conductivity is enhanced so that it dominates the total conductivity in reducing atmospheres. © 2002 Elsevier Science B.V. All rights reserved.
Recommended Citation
I. Kosacki et al., "Nonstoichiometry and Electrical Transport in Sc-doped Zirconia," Solid State Ionics, vol. 152 thru 153, pp. 431 - 438, Elsevier, Dec 2002.
The definitive version is available at https://doi.org/10.1016/S0167-2738(02)00382-X
Department(s)
Materials Science and Engineering
Keywords and Phrases
Defect equilibria; Impedance spectroscopy; Nanocrystals; Nonstoichiometry; Oxygen conductors; Thin films; Zirconia
International Standard Serial Number (ISSN)
0167-2738
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Elsevier, All rights reserved.
Publication Date
01 Dec 2002
