Interfacial fracture resistance of the joint of a solid oxide fuel cell glass-ceramic sealant with metallic interconnect

NCUIR > Engineering College > Departmant of Mechanical Engineering > journal & Dissertation > Item 987654321/108933

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Title:	Interfacial fracture resistance of the joint of a solid oxide fuel cell glass-ceramic sealant with metallic interconnect
Authors:	林志光;Lin, Chih-Kuang;Shiu, Wei-Hong;Wu, Si-Han;Liu, Chien-Kuo;Lee, Ruey-Yi
Contributors:	工學院機械工程學系
Keywords:	Applied sciences;Building materials. Ceramics. Glasses;Chemical industry and chemicals;Chromates;Cracking (fracturing);Direct energy conversion and energy accumulation;Electrical engineering. Electrical power engineering;Electrical power engineering;Electrochemical conversion: primary and secondary batteries, fuel cells;Electronics;Energy;Energy. Thermal use of fuels;Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc;Exact sciences and technology;Fracture mechanics;Fracture toughness;Fuel cells;Glass ceramics;Glasses;Glass–ceramic sealant;Interconnections;Interfacial fracture energy;Metallic interconnect;Microelectronic fabrication (materials and surfaces technology);Planar solid oxide fuel cell;Sealers;Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices;Solid oxide fuel cells;Thermal aging
Date:	2014-09-01
Issue Date:	2026-04-23 15:16:18 (UTC+8)
Publisher:	Elsevier;Amsterdam: Elsevier B.V
Abstract:	摘要： Interfacial cracking resistance of a joint between a glass–ceramic sealant (GC-9) and interconnect stainless steel (Crofer 22 H) for planar solid oxide fuel cells is investigated. Interfacial fracture energy is measured at room temperature to 800 °C using a four-point bending test technique. A heat treatment of 100 h or 1000 h at 800 °C is applied for studying the thermal aging effect. Results show the variation trend of interfacial fracture energy with temperature is similar for all given material conditions. Interfacial fracture energy increases with temperature to reach a peak value at 700 °C and then drops at temperature above 700 °C. A 100-h aging treatment does not change the interfacial fracture energy significantly, compared to the non-aged condition. The 1000 h-aged joint, however, has greater interfacial fracture energy than the non-aged and 100 h-aged joints at 700 °C–800 °C. Two types of cracking path in the interior of fracture surface are identified. Firstly, delamination takes place at the interface between the glass–ceramic substrate and chromate layer. Secondly, cracking occurs within the chromate layer. However, for the 1000 h-aged joints tested at 700 °C–800 °C, fracture at the highly oxidized, peripheral regions takes place within the glass–ceramic layer. •Interfacial fracture energy of SOFC sealant/interconnect joint is determined.•Interfacial fracture energy at 650 °C–800 °C is much larger than that at 25 °C.•Maximum fracture energy takes place at 700 °C due to a crack bridging mechanism.•A 1000-h thermal aging treatment enhances the fracture energy at 700 °C–800 °C.•Chromate layer and glass–ceramic/chromate interface are the typical cracking path. 出版者： Amsterdam: Elsevier B.V 出版日期： 2014-09-01 出處： Journal of power sources, 2014-09, Vol.261, p.227-237 資源來源： ScienceDirect Journals 版權： 2014 Elsevier B.V. 版權： 2015 INIST-CNRS 識別號： ISSN: 0378-7753 識別號： EISSN: 1873-2755 識別號： DOI: 10.1016/j.jpowsour.2014.03.079 識別號： CODEN: JPSODZ
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