Protonic conduction in substoichiometric SrZrO3-based ceramics |
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| Authors: | B Gharbage F M B Marques J R Frade |
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| Institution: | (1) Instituto Politécnico de Viana do Castelo, ESTG, Ap. 574, 4900 Viana do Castelo, Portugal;(2) Departamento de Engenharia Ceramica e do Vidro, Universidade de Aveiro, 3810 Aveiro, Portugal |
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| Abstract: | The transport properties of strontium zirconate based materials were investigated using different characterization techniques.
The electrical conductivity is mainly protonic below 610°C, while the contribution of electron holes increases with temperature
and oxygen partial pressure. Under extreme reducing conditions, the conductivity is dominated by protons and oxygen ions.
Polarization results are consistent with the results obtained.
Paper presented at the 2nd Euroconference on Solid State Ionics, Funchal, Madeira, Portugal, Sept. 10–16, 1995 |
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