Abstract:5 mol% yttria-zirconia ceramic was studied for its use as solid electrolyte in high-temperature pH sensors since this material has interesting mechanical and ion-conducting properties and is available on an industrial scale. However, although its fracture mode in air is transgranular, some batches showed severe intergranular cracking in the working medium, water at 300 °C. In a previous study, it was found that the degradation could be related to the stress caused by the martensitic transformation of intergran… Show more
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