Electrical Conductivity of MgAl2O4 and Y3A15O12
Autor: | J. Lambert Bates, John E. Gamier |
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Rok vydání: | 1981 |
Předmět: | |
Zdroj: | Journal of the American Ceramic Society. 64:C-138 |
ISSN: | 1551-2916 0002-7820 |
DOI: | 10.1111/j.1151-2916.1981.tb10237.x |
Popis: | The electrical conductivities of single crystal and polycrystalline MgAl2O4 and Y3Al5O12 were measured to 1260 K using a three-contact, guard-ring technique. The electrical conduction mechanisms change with temperature, with anomalous oxygen pressure and time-dependent inflections in log σ versus T−1 curves between 900 to 1000 K. The conduction processes of Y3Al5O12 and MgAl2O4 appear to be similar and possibly related to A13+ ion diffusion. |
Databáze: | OpenAIRE |
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