Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect

Fan Lin Hou; Chih Kuang Lin; Atsushi Sugeta; Hiroyuki Akebono; Szu Han Wu; Peng Yang; Ruey Yi Lee

doi:10.1149/07801.1721ecst

Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect

Fan Lin Hou, Chih Kuang Lin, Atsushi Sugeta, Hiroyuki Akebono, Szu Han Wu, Peng Yang, Ruey Yi Lee

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Lanthanum strontium manganite (LSM) has been practically coated on the metallic interconnect to prevent Cr poisoning in SOFC. The aim of this study is to investigate the joint strength between a glass-ceramic sealant and an LSM-coated interconnect steel at room temperature (RT) and 800°C. Effect of long-term thermal aging is also characterized. Results indicate that LSMcoated specimens have a lower joint strength than the uncoated ones. It is attributable to the existence of pores around the interface between glass-ceramic sealant and LSM coating. However, the shear strength of LSM-coated joint specimen is enhanced by 52% at RT and by 200% at 800°C after 1000-h thermal aging at 800°C. The given thermal aging treatment also improves the tensile strength of LSM-coated joint specimen by 50% at 800°C. It is attributed to a self-healing effect of the glass-ceramic sealant during thermal aging to reduce the pore size.

Original language	English
Title of host publication	ECS Transactions
Editors	S. C. Singhal, T. Kawada
Publisher	Electrochemical Society Inc.
Pages	1721-1729
Number of pages	9
Edition	1
ISBN (Electronic)	9781607688150, 9781607688150
DOIs	https://doi.org/10.1149/07801.1721ecst
State	Published - 30 May 2017
Event	15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States Duration: 23 Jul 2017 → 28 Jul 2017

Publication series

Name	ECS Transactions
Number	1
Volume	78
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
Country/Territory	United States
City	Hollywood
Period	23/07/17 → 28/07/17

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10.1149/07801.1721ecst

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Hou, F. L., Lin, C. K., Sugeta, A., Akebono, H., Wu, S. H., Yang, P., & Lee, R. Y. (2017). Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect. In S. C. Singhal, & T. Kawada (Eds.), ECS Transactions (1 ed., pp. 1721-1729). (ECS Transactions; Vol. 78, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/07801.1721ecst

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title = "Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect",

abstract = "Lanthanum strontium manganite (LSM) has been practically coated on the metallic interconnect to prevent Cr poisoning in SOFC. The aim of this study is to investigate the joint strength between a glass-ceramic sealant and an LSM-coated interconnect steel at room temperature (RT) and 800°C. Effect of long-term thermal aging is also characterized. Results indicate that LSMcoated specimens have a lower joint strength than the uncoated ones. It is attributable to the existence of pores around the interface between glass-ceramic sealant and LSM coating. However, the shear strength of LSM-coated joint specimen is enhanced by 52% at RT and by 200% at 800°C after 1000-h thermal aging at 800°C. The given thermal aging treatment also improves the tensile strength of LSM-coated joint specimen by 50% at 800°C. It is attributed to a self-healing effect of the glass-ceramic sealant during thermal aging to reduce the pore size.",

author = "Hou, {Fan Lin} and Lin, {Chih Kuang} and Atsushi Sugeta and Hiroyuki Akebono and Wu, {Szu Han} and Peng Yang and Lee, {Ruey Yi}",

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Hou, FL, Lin, CK, Sugeta, A, Akebono, H, Wu, SH, Yang, P & Lee, RY 2017, Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect. in SC Singhal & T Kawada (eds), ECS Transactions. 1 edn, ECS Transactions, no. 1, vol. 78, Electrochemical Society Inc., pp. 1721-1729, 15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017, Hollywood, United States, 23/07/17. https://doi.org/10.1149/07801.1721ecst

Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect. / Hou, Fan Lin; Lin, Chih Kuang; Sugeta, Atsushi et al.

ECS Transactions. ed. / S. C. Singhal; T. Kawada. 1. ed. Electrochemical Society Inc., 2017. p. 1721-1729 (ECS Transactions; Vol. 78, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Hou, Fan Lin

AU - Lin, Chih Kuang

AU - Sugeta, Atsushi

AU - Akebono, Hiroyuki

AU - Wu, Szu Han

AU - Yang, Peng

AU - Lee, Ruey Yi

PY - 2017/5/30

Y1 - 2017/5/30

N2 - Lanthanum strontium manganite (LSM) has been practically coated on the metallic interconnect to prevent Cr poisoning in SOFC. The aim of this study is to investigate the joint strength between a glass-ceramic sealant and an LSM-coated interconnect steel at room temperature (RT) and 800°C. Effect of long-term thermal aging is also characterized. Results indicate that LSMcoated specimens have a lower joint strength than the uncoated ones. It is attributable to the existence of pores around the interface between glass-ceramic sealant and LSM coating. However, the shear strength of LSM-coated joint specimen is enhanced by 52% at RT and by 200% at 800°C after 1000-h thermal aging at 800°C. The given thermal aging treatment also improves the tensile strength of LSM-coated joint specimen by 50% at 800°C. It is attributed to a self-healing effect of the glass-ceramic sealant during thermal aging to reduce the pore size.

AB - Lanthanum strontium manganite (LSM) has been practically coated on the metallic interconnect to prevent Cr poisoning in SOFC. The aim of this study is to investigate the joint strength between a glass-ceramic sealant and an LSM-coated interconnect steel at room temperature (RT) and 800°C. Effect of long-term thermal aging is also characterized. Results indicate that LSMcoated specimens have a lower joint strength than the uncoated ones. It is attributable to the existence of pores around the interface between glass-ceramic sealant and LSM coating. However, the shear strength of LSM-coated joint specimen is enhanced by 52% at RT and by 200% at 800°C after 1000-h thermal aging at 800°C. The given thermal aging treatment also improves the tensile strength of LSM-coated joint specimen by 50% at 800°C. It is attributed to a self-healing effect of the glass-ceramic sealant during thermal aging to reduce the pore size.

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Y2 - 23 July 2017 through 28 July 2017

ER -

Thermal aging effect on the joint strength between an SOFC glass-ceramic sealant and LSM-coated metallic interconnect

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