Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells

Abstract Nb2O5 is added to a borosilicate sealing system to improve the thermo-mechanical stability of the sealing interface between the glass and Fe-Cr metallic interconnect (Crofer 22APU) in solid oxide fuel cells (SOFCs). The thermo-mechanical stability of the glass/metal interface is evaluated e...

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Autores principales:	Qi Zhang, Xinhang Du, Shengwei Tan, Dian Tang, Kongfa Chen, Teng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d62de31c051642e595e03e58041043aa
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id	oai:doaj.org-article:d62de31c051642e595e03e58041043aa
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spelling	oai:doaj.org-article:d62de31c051642e595e03e58041043aa2021-12-02T12:32:24ZEffect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells10.1038/s41598-017-05725-y2045-2322https://doaj.org/article/d62de31c051642e595e03e58041043aa2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05725-yhttps://doaj.org/toc/2045-2322Abstract Nb2O5 is added to a borosilicate sealing system to improve the thermo-mechanical stability of the sealing interface between the glass and Fe-Cr metallic interconnect (Crofer 22APU) in solid oxide fuel cells (SOFCs). The thermo-mechanical stability of the glass/metal interface is evaluated experimentally as well as by using a finite element analysis (FEA) method. The sealing glass doped with 4 mol.% Nb2O5 shows the best thermo-mechanical stability, and the sealing couple of Crofer 22APU/glass/GDC (Gd0.2Ce0.8O1.9) remains intact after 50 thermal cycles. In addition, all sealing couples show good joining after being held at 750 °C for 1000 h. Moreover, the possible mechanism on the thermo-mechanical stability of sealing interface is investigated in terms of stress-based and energy-based perspectives.Qi ZhangXinhang DuShengwei TanDian TangKongfa ChenTeng ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qi Zhang Xinhang Du Shengwei Tan Dian Tang Kongfa Chen Teng Zhang Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
description	Abstract Nb2O5 is added to a borosilicate sealing system to improve the thermo-mechanical stability of the sealing interface between the glass and Fe-Cr metallic interconnect (Crofer 22APU) in solid oxide fuel cells (SOFCs). The thermo-mechanical stability of the glass/metal interface is evaluated experimentally as well as by using a finite element analysis (FEA) method. The sealing glass doped with 4 mol.% Nb2O5 shows the best thermo-mechanical stability, and the sealing couple of Crofer 22APU/glass/GDC (Gd0.2Ce0.8O1.9) remains intact after 50 thermal cycles. In addition, all sealing couples show good joining after being held at 750 °C for 1000 h. Moreover, the possible mechanism on the thermo-mechanical stability of sealing interface is investigated in terms of stress-based and energy-based perspectives.
format	article
author	Qi Zhang Xinhang Du Shengwei Tan Dian Tang Kongfa Chen Teng Zhang
author_facet	Qi Zhang Xinhang Du Shengwei Tan Dian Tang Kongfa Chen Teng Zhang
author_sort	Qi Zhang
title	Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
title_short	Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
title_full	Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
title_fullStr	Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
title_full_unstemmed	Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
title_sort	effect of nb2o5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d62de31c051642e595e03e58041043aa
work_keys_str_mv	AT qizhang effectofnb2o5dopingonimprovingthethermomechanicalstabilityofsealinginterfacesforsolidoxidefuelcells AT xinhangdu effectofnb2o5dopingonimprovingthethermomechanicalstabilityofsealinginterfacesforsolidoxidefuelcells AT shengweitan effectofnb2o5dopingonimprovingthethermomechanicalstabilityofsealinginterfacesforsolidoxidefuelcells AT diantang effectofnb2o5dopingonimprovingthethermomechanicalstabilityofsealinginterfacesforsolidoxidefuelcells AT kongfachen effectofnb2o5dopingonimprovingthethermomechanicalstabilityofsealinginterfacesforsolidoxidefuelcells AT tengzhang effectofnb2o5dopingonimprovingthethermomechanicalstabilityofsealinginterfacesforsolidoxidefuelcells
_version_	1718394124418154496

Effect of Nb2O5 doping on improving the thermo-mechanical stability of sealing interfaces for solid oxide fuel cells

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