Joint Strength of a Braze Sealant with Metallic Interconnect in Solid Oxide Fuel Cell

Y. W. Tseng, C. K. Lin, L. W. Huang, C. K. Liu, R. Y. Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Mechanical behavior of a braze sealant/metallic interconnect joint in SOFC is investigated. Sandwich-like joint specimens are made to determine the shear and tensile joint strength at room temperature (RT) and 750 C. For tensile loading mode, the joint strength at RT and 750 C is of 30.63 3.2 MPa and 13.43 0.99 MPa, respectively. For shear loading mode, the joint strength at RT and 750 C is of 40.02 2.88 MPa and 10.06 0.36 MPa, respectively. Regardless of testing temperature, fracture of the tensile specimens occurs at the interface between the braze sealant and the Cr2O3oxide layer and occasionally within the Cr2O3oxide layer. When the testing temperature of the shear specimens is increased from RT to 750 C, the location of rupture changes from the interface between the braze sealant and interconnect to the interface between the braze sealant and the Cr2O3oxide layer.

Original languageEnglish
Title of host publication17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
PublisherIOP Publishing Ltd
Pages1997-2005
Number of pages9
Edition1
ISBN (Electronic)9781607685395
DOIs
StatePublished - 2021
Event17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, Sweden
Duration: 18 Jul 202123 Jul 2021

Publication series

NameECS Transactions
Number1
Volume103
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Country/TerritorySweden
CityStockholm
Period18/07/2123/07/21

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