環境效應對SOFC玻璃陶瓷接合劑高溫機械性質之影響;Environmental Effect on High-Temperature Mechanical Properties of SOFC Sealants

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题名:	環境效應對SOFC玻璃陶瓷接合劑高溫機械性質之影響;Environmental Effect on High-Temperature Mechanical Properties of SOFC Sealants
作者:	林志光
贡献者:	國立中央大學機械工程學系
关键词:	機械工程;材料科技;能源工程
日期:	2014-03-11
上传时间:	2014-03-11 15:20:59 (UTC+8)
出版者:	行政院原子能委員會
摘要:	研究期間：10301~10312;Solid oxide fuel cells (SOFCs) operate at a high-temperature range of 650 oC to 1000oC in a direct conversion process such that they have the highest efficiencies of all fuel cells. The high-temperature operation, however, gives rise to significant thermal stresses in the SOFC system due to thermal mismatch between components. When a ceramic component is held under such a prolonged thermal load (stress), pre-existing, subcritical pores or defects can grow to failure and degrade the performance of an SOFC system during service. The purpose of this study is to characterize the effects of working environments (reducing and oxidizing atmospheres) on the bonding strength of the glass-ceramic sealant/metallic interconnect joint for planar SOFC (pSOFC) systems. In particular, high-temperature mechanical testing of the glass ceramic sealant-metallic interconnect joint will be conducted in a hydrogen-containing, reducing environment for assessment of the tensile and shear joint strength when subjected to thermal stresses. Based on the experimental results, an appropriate fracture strength assessment model for pSOFC stack joints will be developed and applied to the pSOFC system being developed at the Institute of Nuclear Energy Research.
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
显示于类别:	[機械工程學系] 研究計畫

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