Development of a ferritic alloy separator for a planar SOFC

Shunsuke Taniguchi; Masataka Kadowaki; Takashi Yasuo; Yukinori Akiyama; Yasuo Miyake; Koji Nishio

doi:10.5796/kogyobutsurikagaku.65.574

Development of a ferritic alloy separator for a planar SOFC

Shunsuke Taniguchi, Masataka Kadowaki, Takashi Yasuo, Yukinori Akiyama, Yasuo Miyake, Koji Nishio

Hydrogen utilization

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4 Citations (Scopus)

Abstract

Heat-resistant ferritic alloys were investigated for use as a SOFC separator material in order to reduce the difference in thermal expansion between the electrolyte and separator. The heat resistance of ferritic alloys was improved by adding a small amount of lanthanum, making it possible to use them as a SOFC separator. The thermal cycle characteristics were improved in a 50 mm × 50 mm single cell using this ferritic alloy in comparison with a cell using an Ni-based alloy. The single cell was operated for about 7000 h. Degradation of the cell performance was apparently mainly caused by gas leakage.

Original language	English
Pages (from-to)	574-579
Number of pages	6
Journal	Denki Kagaku
Volume	65
Issue number	7
DOIs	https://doi.org/10.5796/kogyobutsurikagaku.65.574
Publication status	Published - 1997

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.5796/kogyobutsurikagaku.65.574

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AU - Taniguchi, Shunsuke

AU - Kadowaki, Masataka

AU - Yasuo, Takashi

AU - Akiyama, Yukinori

AU - Miyake, Yasuo

AU - Nishio, Koji

PY - 1997

Y1 - 1997

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AB - Heat-resistant ferritic alloys were investigated for use as a SOFC separator material in order to reduce the difference in thermal expansion between the electrolyte and separator. The heat resistance of ferritic alloys was improved by adding a small amount of lanthanum, making it possible to use them as a SOFC separator. The thermal cycle characteristics were improved in a 50 mm × 50 mm single cell using this ferritic alloy in comparison with a cell using an Ni-based alloy. The single cell was operated for about 7000 h. Degradation of the cell performance was apparently mainly caused by gas leakage.

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Development of a ferritic alloy separator for a planar SOFC

Abstract

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