| Autor: |
Ivanov, V. V., Kotov, Yu. A., Gorelov, V. P., Borisov, V. N., Murzakaev, A. M., Samatov, O. M., Medvedev, A. I., Khrustov, V. R., Ivin, S. Yu., Zayats, S. V., Balakireva, V. B., Sharova, N. V., Kuz’min, A. V., Vaganov, E. G., Moskalenko, N. I. |
| Zdroj: |
Russian Journal of Electrochemistry; June 2005, Vol. 41 Issue: 6 p612-619, 8p |
| Abstrakt: |
Abstract The effect of the composition and density of ceramics on the electroconductivity of solid electrolytes Ce1 − xGdxO2 − δ(x = 0.09–0.31) with a submicron (0.1–0.3 µm) grain size, which are prepared from nanosized powders, is investigated. The powders are synthesized by two methods, specifically, by evaporation of a target with the aid of the radiation of a pulsed carbon dioxide laser and by a chemical method of burning. The samples of ceramics are prepared by magnetopulsed or quasi-isostatic (200–500 MPa) pressing and subsequent caking in air at a temperature of 1100–1300°C. It is established that the electroconductivity of the obtained solid electrolytes is higher and the effective activation energy for conduction is considerably lower as compared with analogous electrolytes with a micron grain size. |
| Databáze: |
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