Ag-CuO-Al2O3复合钎料空气反应钎焊SOFC及服役性能

Xiaoqing Si; Chun Li; Qingwei Zheng; Junlei Qi; Jicai Feng; Jian Cao

doi:10.12073/j.hjxb.20190907001

Ag-CuO-Al₂O₃复合钎料空气反应钎焊SOFC及服役性能

Translated title of the contribution: Reactive air brazing of SOFC using Ag-CuO-Al₂O₃ composite braze and the service performance study

Xiaoqing Si
, Chun Li
, Qingwei Zheng
, Junlei Qi
, Jicai Feng
, Jian Cao^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

In this study, the Ag-CuO-Al₂O₃ composite braze was successfully developed through adding Al₂O₃ nanoparticle reinforcements, which was suitable for reactive air brazing (RAB) solid oxide fuel cell (SOFC) components. The RAB joining process was investigated in detail. The cell was successfully joined to the aluminized steel at 1 050℃ for 30 min. The interfacial joining properties were studied. The evolution behavior of Al₂O₃ nanoparticle reinforcements in the RAB process was also analyzed. As-brazed joints were tested in high-temperature service atmospheres. The microstructure properties of joints after aging in high-temperature oxidization (air) and reduction (H₂-50H₂O-N₂) atmospheres was investigated. It is shown that the Al₂O₃ protective layer of aluminized steel had good protective effects on the steel matrix, avoiding its performance degradation during brazing and high-temperature aging. The Al₂O₃ protective layer play a key role in ensuring the stability of joint structure. The influence of the high-temperature service on the gas-tightness of joints was systematically studied. The applicability of the Ag-CuO-Al₂O₃ composite braze used for RAB joining SOFC components was comprehensively evaluated.

Translated title of the contribution	Reactive air brazing of SOFC using Ag-CuO-Al₂O₃ composite braze and the service performance study
Original language	Chinese (Traditional)
Pages (from-to)	1-6
Number of pages	6
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	41
Issue number	5
DOIs	https://doi.org/10.12073/j.hjxb.20190907001
State	Published - 25 May 2020

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@article{3f631b1507e242b0896fc50a35e3f5a6,

title = "Ag-CuO-Al2O3复合钎料空气反应钎焊SOFC及服役性能",

abstract = "In this study, the Ag-CuO-Al2O3 composite braze was successfully developed through adding Al2O3 nanoparticle reinforcements, which was suitable for reactive air brazing (RAB) solid oxide fuel cell (SOFC) components. The RAB joining process was investigated in detail. The cell was successfully joined to the aluminized steel at 1 050℃ for 30 min. The interfacial joining properties were studied. The evolution behavior of Al2O3 nanoparticle reinforcements in the RAB process was also analyzed. As-brazed joints were tested in high-temperature service atmospheres. The microstructure properties of joints after aging in high-temperature oxidization (air) and reduction (H2-50H2O-N2) atmospheres was investigated. It is shown that the Al2O3 protective layer of aluminized steel had good protective effects on the steel matrix, avoiding its performance degradation during brazing and high-temperature aging. The Al2O3 protective layer play a key role in ensuring the stability of joint structure. The influence of the high-temperature service on the gas-tightness of joints was systematically studied. The applicability of the Ag-CuO-Al2O3 composite braze used for RAB joining SOFC components was comprehensively evaluated.",

keywords = "High-temperature service, Interfacial microstructure, Reactive air brazing, Solid oxide fuel cell",

author = "Xiaoqing Si and Chun Li and Qingwei Zheng and Junlei Qi and Jicai Feng and Jian Cao",

year = "2020",

month = may,

day = "25",

doi = "10.12073/j.hjxb.20190907001",

language = "繁体中文",

volume = "41",

pages = "1--6",

journal = "Hanjie Xuebao/Transactions of the China Welding Institution",

issn = "0253-360X",

publisher = "Harbin Research Institute of Welding",

number = "5",

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T1 - Ag-CuO-Al2O3复合钎料空气反应钎焊SOFC及服役性能

AU - Si, Xiaoqing

AU - Li, Chun

AU - Zheng, Qingwei

AU - Qi, Junlei

AU - Feng, Jicai

AU - Cao, Jian

PY - 2020/5/25

Y1 - 2020/5/25

N2 - In this study, the Ag-CuO-Al2O3 composite braze was successfully developed through adding Al2O3 nanoparticle reinforcements, which was suitable for reactive air brazing (RAB) solid oxide fuel cell (SOFC) components. The RAB joining process was investigated in detail. The cell was successfully joined to the aluminized steel at 1 050℃ for 30 min. The interfacial joining properties were studied. The evolution behavior of Al2O3 nanoparticle reinforcements in the RAB process was also analyzed. As-brazed joints were tested in high-temperature service atmospheres. The microstructure properties of joints after aging in high-temperature oxidization (air) and reduction (H2-50H2O-N2) atmospheres was investigated. It is shown that the Al2O3 protective layer of aluminized steel had good protective effects on the steel matrix, avoiding its performance degradation during brazing and high-temperature aging. The Al2O3 protective layer play a key role in ensuring the stability of joint structure. The influence of the high-temperature service on the gas-tightness of joints was systematically studied. The applicability of the Ag-CuO-Al2O3 composite braze used for RAB joining SOFC components was comprehensively evaluated.

AB - In this study, the Ag-CuO-Al2O3 composite braze was successfully developed through adding Al2O3 nanoparticle reinforcements, which was suitable for reactive air brazing (RAB) solid oxide fuel cell (SOFC) components. The RAB joining process was investigated in detail. The cell was successfully joined to the aluminized steel at 1 050℃ for 30 min. The interfacial joining properties were studied. The evolution behavior of Al2O3 nanoparticle reinforcements in the RAB process was also analyzed. As-brazed joints were tested in high-temperature service atmospheres. The microstructure properties of joints after aging in high-temperature oxidization (air) and reduction (H2-50H2O-N2) atmospheres was investigated. It is shown that the Al2O3 protective layer of aluminized steel had good protective effects on the steel matrix, avoiding its performance degradation during brazing and high-temperature aging. The Al2O3 protective layer play a key role in ensuring the stability of joint structure. The influence of the high-temperature service on the gas-tightness of joints was systematically studied. The applicability of the Ag-CuO-Al2O3 composite braze used for RAB joining SOFC components was comprehensively evaluated.

KW - High-temperature service

KW - Interfacial microstructure

KW - Reactive air brazing

KW - Solid oxide fuel cell

UR - https://www.scopus.com/pages/publications/85090745150

U2 - 10.12073/j.hjxb.20190907001

DO - 10.12073/j.hjxb.20190907001

M3 - 文章

AN - SCOPUS:85090745150

SN - 0253-360X

VL - 41

SP - 1

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JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

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ER -

Ag-CuO-Al₂O₃复合钎料空气反应钎焊SOFC及服役性能

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