Strength and Thermal Shock Properties of Scandia-Doped Zirconia for Thin Electrolyte Sheet of Solid Oxide Fuel Cell

Sawao Honda; Kazumasa Kimata; Shinobu Hashimoto; Yuji Iwamoto; Misuzu Yokoyama; Jun Shimano; Kenji Ukai; Yasunobu Mizutani

doi:10.2320/matertrans.MF200901

Sawao Honda, Kazumasa Kimata, Shinobu Hashimoto, Yuji Iwamoto, Misuzu Yokoyama, Jun Shimano, Kenji Ukai, Yasunobu Mizutani

Author information

Sawao Honda
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Kazumasa Kimata
Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
Shinobu Hashimoto
Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology
Yuji Iwamoto
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
Misuzu Yokoyama
Fundamental Research Department, Technical Research Institute, Toho Gas Co., Ltd.
Jun Shimano
Fundamental Research Department, Technical Research Institute, Toho Gas Co., Ltd.
Kenji Ukai
Fundamental Research Department, Technical Research Institute, Toho Gas Co., Ltd.
Yasunobu Mizutani
Fundamental Research Department, Technical Research Institute, Toho Gas Co., Ltd.

Keywords: solid oxide fuel cell, scandia-stabilized zirconia, thin disk electrolyte, thermal shock test, high temperature strength

JOURNAL FREE ACCESS

2009 Volume 50 Issue 7 Pages 1742-1746

DOI https://doi.org/10.2320/matertrans.MF200901

View "Advance Publication" version (June 17, 2009).

Details

Abstract

The high temperature strength and the thermal shock resistance of scandia-stabilized zirconia (ScSZ) electrolyte sheet and planar cell specimen of Solid Oxide Fuel Cell (SOFC) with the actual thickness could be evaluated successfully using by piston on ring (POR) and infrared radiation heating (IRH) methods respectively. The fracture strength of ScSZ electrolyte was decreased with increase of experimental temperature and scandia content. The fracture load of cell specimen that was tried to fabricate with anode and cathode-electrodes decreased as compared with electrolyte. The thermal shock strength of electrolyte specimen was changed with fracture strength and thermal expansion coefficient.

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