Elastic properties of yttrium doped barium zirconate

K. Hinata, F. Iguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Elastic properties are fundamental knowledge for structural designing. Under the development of proton-conducting ceramics fuel cells (PCFCs), there is no doubt about the importance of elastic properties. However, the systematic study about component materials of PCFCs has been insufficient, and obtained elastic properties cannot cover the entire operation conditions. Low sinterability and processability of solid electrolytes prevent from adopting conventional measuring method for high temperature metals. We therefore modified an ultrasonic transmission method for pellet type specimens and measured elastic properties in 10, 15, 20 mol% yttrium doped barium zirconate from room temperature to 700ºC. The results indicated that elastic moduli such as Young's modulus and shear modulus gradually decrease with temperature rising to approximately 200°C and the slope became moderate over 400°C. Elastic moduli in BZY decreased by 30-40% from room temperature to 500°C. Observed temperature dependences are important basic properties for the structural designing of PCFCs.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages1065-1073
Number of pages9
Edition1
ISBN (Electronic)9781607688747
DOIs
Publication statusPublished - 2019 Jan 1
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: 2019 Sep 82019 Sep 13

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
CountryJapan
CityKyoto
Period19/9/819/9/13

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Hinata, K., & Iguchi, F. (2019). Elastic properties of yttrium doped barium zirconate. In K. Eguchi, & S. C. Singhal (Eds.), Solid Oxide Fuel Cells 16, SOFC 2019 (1 ed., pp. 1065-1073). (ECS Transactions; Vol. 91, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/09101.1065ecst