Elastic properties of yttrium doped barium zirconate

K. Hinata, F. Iguchi

研究成果: Conference contribution

抜粋

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.

元の言語English
ホスト出版物のタイトルSolid Oxide Fuel Cells 16, SOFC 2019
編集者K. Eguchi, S. C. Singhal
出版者Electrochemical Society Inc.
ページ1065-1073
ページ数9
エディション1
ISBN(電子版)9781607688747
DOI
出版物ステータスPublished - 2019 1 1
イベント16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
継続期間: 2019 9 82019 9 13

出版物シリーズ

名前ECS Transactions
番号1
91
ISSN(印刷物)1938-6737
ISSN(電子版)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
Japan
Kyoto
期間19/9/819/9/13

ASJC Scopus subject areas

  • Engineering(all)

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  • これを引用

    Hinata, K., & Iguchi, F. (2019). Elastic properties of yttrium doped barium zirconate. : K. Eguchi, & S. C. Singhal (版), Solid Oxide Fuel Cells 16, SOFC 2019 (1 版, pp. 1065-1073). (ECS Transactions; 巻数 91, 番号 1). Electrochemical Society Inc.. https://doi.org/10.1149/09101.1065ecst