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

Akira Kishimoto; Koyo Shimoyama; Takashi Teranishi; Hidetaka Hayashi

doi:10.2109/jcersj2.17056

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

Akira Kishimoto, Koyo Shimoyama, Takashi Teranishi, Hidetaka Hayashi

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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 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.

Original language	English
Pages (from-to)	717-720
Number of pages	4
Journal	Journal of the Ceramic Society of Japan
Volume	125
Issue number	10
DOIs	https://doi.org/10.2109/jcersj2.17056
Publication status	Published - Oct 2017

Keywords

Ionic conduction
Millimeter-wave
Thermal environment
Zirconia

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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10.2109/jcersj2.17056

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

abstract = "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 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.",

keywords = "Ionic conduction, Millimeter-wave, Thermal environment, Zirconia",

author = "Akira Kishimoto and Koyo Shimoyama and Takashi Teranishi and Hidetaka Hayashi",

note = "Funding Information: Acknowledgement This work was partially supported by JSPS KAKENHI (Grant Number: 16H04497). Publisher Copyright: {\textcopyright} 2017 The Ceramic Society of Japan. All rights reserved.",

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doi = "10.2109/jcersj2.17056",

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AB - 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 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.

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KW - Millimeter-wave

KW - Thermal environment

KW - Zirconia

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

Abstract

Keywords

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