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 journalArticlepeer-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 languageEnglish
Pages (from-to)717-720
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume125
Issue number10
DOIs
Publication statusPublished - 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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