The isothermal conductivity improvement in zirconia-based ceramics under 24 GHz microwave heating

Akira Kishimoto, Keiko Ayano, Takashi Teranishi, Hidetaka Hayashi

Research output: Contribution to journalArticle

9 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)486-489
Number of pages4
JournalMaterials Chemistry and Physics
Volume143
Issue number2
DOIs
Publication statusPublished - Jan 15 2014

Keywords

  • Ceramics
  • Electrical conductivity
  • Oxides
  • Transport properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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