The isothermal conductivity improvement in zirconia-based ceramics under 24 GHz microwave heating |
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| Authors: | Akira Kishimoto Keiko AyanoTakashi Teranishi Hidetaka Hayashi |
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| Affiliation: | Division of Chemistry and Biotechnology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Okayama 700-8530, Japan |
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| Abstract: | Abstract Under 24-GHz millimetre-wave irradiation heating ionic conductivity of zirconia base ceramics was up to 20 times higher than that of a conventionally-heated sample at the same temperature of 400 °C. The degree of enhancement could be altered by changing the stabilising atom from Y to Yb. Enhancement of ionic conduction was prominent in the setup condition of larger self-heating ratio and larger MMW absorbing materials. The isothermal improvement of ionic conductivity under MMW irradiation would be ascribed to the non-thermal effect. |
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| Keywords: | Oxides Ceramics Electrical conductivity Transport properties |
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