Nanostructuration effect on ionic conductivity of zirconia ceramics for IT-SOFC

E. Djurado*, S. Boulfrad, L. Dessemond

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

For pure ionic conductor materials, such as YSZ, the influence of the nanometric grain size on conductivity is still controversial. This work reports the influence of grain size of massive stabilized zirconia ceramics on the electrical properties. Dense and pure cubic zirconia ceramics ranging from 25 to 240 nm and of 93 to 98% of theoretical density were successfully prepared. Impedance spectroscopy measurements were carried out in order to discriminate and describe the conduction and blocking properties of the grains and the grain boundaries of cubic zirconia according to its microstructure. The role of the space-charge layers was highlighted.

Original languageEnglish (US)
Title of host publicationA Global Road Map for Ceramic Materials and Technologies
Subtitle of host publicationForecasting the Future of Ceramics, International Ceramic Federation - 2nd International Congress on Ceramics, ICC 2008, Final Programme
StatePublished - 2008
Externally publishedYes
Event2nd International Congress on Ceramics, ICC 2008 - Verona, Italy
Duration: Jun 29 2008Jul 4 2008

Other

Other2nd International Congress on Ceramics, ICC 2008
CountryItaly
CityVerona
Period06/29/0807/4/08

ASJC Scopus subject areas

  • Ceramics and Composites

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