Relationship between thermal environment and conductivity enhancement under millimeter-wave irradiation heating of zirconia ceramics

Akira KISHIMOTO, Koyo SHIMOYAMA, Takashi TERANISHI, Hidetaka HAYASHI
2017 Journal of the Ceramic Society of Japan  
Improving the conductivity of 8 mol % yttria-stabilized zirconia (8YSZ) electrolyte has enabled a lowering of the operating temperature of solid oxide fuel cells. We previously reported that millimeter-wave irradiation heating increases the ionic conductivity of ceramics. The ionic conductivity of 8YSZ under millimeter-wave irradiation heating had been up to 20 times higher than that with conventional heating. In the present study, we investigated the optimal thermal environment for
more » ... ent for millimeter-wave irradiation heating. We also investigated the thermal profile of samples under millimeter-wave irradiation heating to elucidate the rate of the non-thermal effect.
doi:10.2109/jcersj2.17056 fatcat:wwtbfgcrubg6fl63y7xe4fs2xa