WFRF:(Zhang Suping)
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High gas tightness ZrO2-added silicate glass sealant with low thermal stress for solid oxide fuel cells
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- Guo, Mengyuan (author)
- China University of Mining and Technology-Beijing
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- Zhang, Xiaoqiang (author)
- Lund University,Lunds universitet,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,University of St Andrews
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- Li, Ying (author)
- China University of Mining and Technology-Beijing
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- (creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English 9 s.
- In: Ceramics International. - : Elsevier BV. - 0272-8842. ; 49:12, s. 19708-19716
- Journal article (peer-reviewed)
Abstract
Subject headings
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- A low leakage rate sealant of 10 wt% ZrO2-added CaO–K2O–Na2O–BaO silicate glass for SOFC has been studied. The structure of the sealant is stable at high temperatures with leakage rates less than 10−4 sccm∙cm−1, and no crystal except for ZrO2 is found in XRD analysis after heating at 800 °C for 100 h. ZrO2 is distributed in the glass matrix and plays a supporting role in avoiding over-softening at operating temperature. Good compatibility in both oxidizing and reducing atmospheres between the sealant and SUS430 interconnect was proved by SEM at 750 °C for 100 h. A fully coupled 3D Multiphysics button SOFC is constructed for mechanical analyses. The results show that the increase of ZrO2 in the sealant will decrease the stress and displacement in the SOFC. Besides, the width of the sealant also affects the stress value and distribution. The results show that GZ10 is a competitive sealing material compared with other ZrO2-added sealants.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
Keyword
- Glass sealant
- Leakage rate
- Solid oxide fuel cell
- Thermal expansion coefficient
- Thermal stress
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Guo, Mengyuan
- Zhang, Xiaoqiang
- Li, Ying
- Andersson, Marti ...
- Yang, Zhibin
- Peng, Suping
- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
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