Effect of CaF2 on the electrical properties of yttria-stabilized zirconia |
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| Affiliation: | 1. School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing 100084, China;2. State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Beijing 100084, China |
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| Abstract: | The effects of CaF2 addition on the phase constitutions and electrical properties of 8 mol% yttria-stabilized zirconia were investigated. Three samples were prepared, one being doped with 10 mol% CaF2 and sintered at 1473 K and the other two doped with 20 mol% CaF2 and sintered at 1473 and 1673 K, respectively. Single phased fluorite-type solid solution with cubic symmetry was observed for each sample. However, F ion exists only in the sample doped with 20 mol% CaF2 and sintered at 1273 K. Electrical measurements showed that addition of CaF2 may enhance the ionic conductivity of the yttria-stabilized zirconia. |
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