I want to increase ionic conductivity of oxygen ions in a ceramic disk made by powder metallurgy route. Which materials can be added in the ceramic powder and in what % that can increase ionic conductivity of O+ ions. Your valuable suggestions are invited. Thanks in advance.
Hi Satish,
From technically relevant ceramics, only ceramics based on ZrO2 conduct O-2 ions (by the temperature > 750°C). The denser this ceramic, the better conductive it is. Since no ceramic can be made from pure ZrO2, it is about compositions ZrO2 + stabilizer (CaO, MgO or Y2O3). The best variant for a conductive ceramic is one with 7-9 mol-% Y2O3 stabilized ZrO2, short name: YSZ.
Regards
Vadim
https://www.sciencedirect.com/search?qs=enhance%20the%20ionic%20conductivity%20of%20a%20ceramic%20material&show=25&sortBy=relevance
Article Enhanced ionic conductivity in phase stabilized yttria-doped...
Is it possible to increase the ionic conductivity of alumina? If yes then how?
Beta Al2O3 has a conductivity of Na+ ions by the temperature higher 300°C, but oxygen ions conduct none of Al2O3-ceramics. "Normal" alfa Al2O3 is one of the best insulators anyway.
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