| Autor: |
Marjan Marinšek, Stane Pejovnik, Jadran Maček |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
Journal of the European Ceramic Society. 27:959-964 |
| ISSN: |
0955-2219 |
| DOI: |
10.1016/j.jeurceramsoc.2006.04.165 |
| Popis: |
Ni-YSZ cermets with tailored microstructural characteristics are of interest in many solid-state electrochemical applications such as fuel cell electrode processes or oxygen sensors. In order to elucidate the role of microstructural parameters on overall Ni-YSZ electrical characteristics, different cermets were synthesized by the citrate–nitrate combustion route and their electrical characteristics were tested. The combustion derived samples exhibited fairly high electronic conductivity, even at a relatively low metal volume fraction of 24 vol.% of Ni. To determine the electrical conductivity behaviour of the composites in a broad range of metal content and its relation to material porosity, the general effective media approach and the sine-wave approximation were used, respectively. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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