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Space charge concept for acceptor-doped zirconia and ceria and experimental evidences
- Source :
-
Solid State Ionics . Sep2004, Vol. 173 Issue 1-4, p63-67. 5p. - Publication Year :
- 2004
-
Abstract
- Abstract: The grain boundary cores of acceptor-doped zirconia and ceria are positively charged, which is probably due to the oxygen vacancy enrichment there. Oxygen vacancies are therefore depleted in the space charge layers, which is the decisive cause of the low grain boundary conductivity in acceptor-doped zirconia and ceria materials of high purity. This space charge concept is elaborated, and crucial experimental evidences are summarized. [Copyright &y& Elsevier]
- Subjects :
- *SPACE charge
*CERIUM oxides
*CRYSTAL growth
*CRYSTAL grain boundaries
Subjects
Details
- Language :
- English
- ISSN :
- 01672738
- Volume :
- 173
- Issue :
- 1-4
- Database :
- Academic Search Index
- Journal :
- Solid State Ionics
- Publication Type :
- Academic Journal
- Accession number :
- 15552197
- Full Text :
- https://doi.org/10.1016/j.ssi.2004.07.053