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Interface Reactions Between Sealing Glass and Metal Interconnect Under Static and Dynamic Heat Treatment Conditions
Peng, Lian1; Zhu, Qingshan1; Xie, Zhaohui1; Wang, Ping2
2015-12-01
Source PublicationJOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY
ISSN1550-624X
Volume12Issue:6Pages:1
Abstract

Chemical compatibility of sealing glass with metal interconnects is a critical issue for planar solid oxide fuel cell (SOFC). In this paper, interface reactions between a sealing glass and a ferritic metal interconnect (SS410) are tested under three different heat treatment conditions: sealing (static), aging (static), and thermal cycling (dynamic). The results show that the BaCrO4 crystals with two different morphology (round-shaped and needle-shaped) form both at the three-phase boundary (where air, glass, and SS410 meet) and on the surface of the sealing glass under the three conditions. Round-shaped BaCrO4 crystals form with low O-2 concentration and short reaction time. Needle-shaped BaCrO4 crystals form with high O-2 concentration and long reaction time. For the thermal cycling condition, the BaCrO4 formed at early stages causes the delamination of the sealing interface. Then, O-2 diffuses into the interior interface along the delamination path, which results in the formation of BaCrO4 at the interior interface. The delaminationenhanced BaCrO4 formation during thermal cycling will lead to crack along the sealing interface, causing the striking increase of leak rates.

KeywordSealing Glass Interface Reactions Thermal Cycling Aging Solid Oxide Fuel Cells
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1115/1.4032337
URL查看原文
Indexed BySCI
Language英语
WOS KeywordOxide Fuel-cells ; Oxygen ; Stability ; Compatibility ; Diffusion
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS SubjectElectrochemistry ; Energy & Fuels
Funding OrganizationNational Natural Science Foundation of China(21325628)
WOS IDWOS:000370968300010
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20649
Collection研究所(批量导入)
Corresponding AuthorZhu, Qingshan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Zhong Guan Cun,POB 353, Beijing 100190, Peoples R China
2.MEP Minist Environm Protect, Nucl & Radiat Safety Ctr, Beijing 100082, Peoples R China
Recommended Citation
GB/T 7714
Peng, Lian,Zhu, Qingshan,Xie, Zhaohui,et al. Interface Reactions Between Sealing Glass and Metal Interconnect Under Static and Dynamic Heat Treatment Conditions[J]. JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY,2015,12(6):1.
APA Peng, Lian,Zhu, Qingshan,Xie, Zhaohui,&Wang, Ping.(2015).Interface Reactions Between Sealing Glass and Metal Interconnect Under Static and Dynamic Heat Treatment Conditions.JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY,12(6),1.
MLA Peng, Lian,et al."Interface Reactions Between Sealing Glass and Metal Interconnect Under Static and Dynamic Heat Treatment Conditions".JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY 12.6(2015):1.
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