Creep rupture of the joint between a glass-ceramic sealant and lanthanum strontium manganite-coated ferritic stainless steel interconnect for solid oxide fuel cells

Chih Kuang Lin, Ting Wei Lin, Si Han Wu, Wei Hong Shiu, Chien Kuo Liu, Ruey Yi Lee

研究成果: 雜誌貢獻期刊論文同行評審

13 引文 斯高帕斯(Scopus)

摘要

Creep rupture is investigated at 800 °C of a joint between a glass-ceramic sealant and a ferritic stainless steel interconnect coated with lanthanum strontium manganite for solid oxide fuel cell application. Results reveal the shear and tensile creep strength of the as-joined, non-aged joint at a rupture time of 1000 h is about 42% and 3% of the average shear and tensile bonding strength, respectively. A thermal aging of 1000 h at 800 °C enhances the creep strength. For both non-aged shear and tensile specimens with a short creep rupture time, fracture mainly takes place in an oxyapatite interlayer which is formed in the joining process. For a medium creep rupture time, fracture site changes to a mixed BaCrO4/oxyapatite layer. Oxyapatite and BaCrO4 dominate the creep failure mechanism for 1000 h-aged shear specimens, while (Cr,Mn)3O4 spinel plays a role in the creep failure of 1000 h-aged tensile specimens.

原文???core.languages.en_GB???
頁(從 - 到)2417-2429
頁數13
期刊Journal of the European Ceramic Society
38
發行號5
DOIs
出版狀態已出版 - 5月 2018

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