Active brazing of SiO2f/SiO2 composite and Invar alloy with Cu-25Sn-10Ti

Dalei Zhang; Junlei Qi; Lixia Zhang; Jicai Feng; Yingchun Liang

Active brazing of SiO_2f/SiO₂ composite and Invar alloy with Cu-25Sn-10Ti

Dalei Zhang
, Junlei Qi
, Lixia Zhang^*
, Jicai Feng
, Yingchun Liang

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology Weihai
School of Mechatronics Engineering, Harbin Institute of Technology

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

2 Scopus citations

Abstract

The Invar alloy was brazed to SiO_2f/SiO₂ composite using Cu-25Sn-10Ti filler alloy. The interfacial microstructure of joint was analyzed and its formation mechanism was discussed, and also the impact of interfacial microstructure on shear strength of joints at different holding time was studied. Results show that continuous interfacial reaction layer has been formed at both sides of the base materials at brazing temperature 880°C and holding time for 15 min, while the typical interfacial microstructure was Invar alloy/Fe₂Ti+Cu(s, s)+(Ni, Fe, Cu)₂TiSn/Cu (s, s)+Cu₄₁Sn₁₁+CuTi/TiSi + Ti₂O₃/SiO_2f/SiO₂ composite. Holding time increasing would enlarge the thickness of TiSi Ti₂O₃ layer near SiO_2f/SiO₂ composite, and Fe₂Ti particles would turn into blocks. The shear strength of joint would also change with increasing of holding time. The shear strength of the joints reaches a maximum of 11.86 MPa when the temperature is 880°C and the holding time is 15 min.

Original language	English
Pages (from-to)	53-56
Number of pages	4
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	35
Issue number	3
State	Published - Mar 2014

Keywords

Brazing
Interfacial microstructure
Invar alloy
Shear strength

Cite this

@article{5781217ccf094bdb8b2cf40b8189c1d0,

title = "Active brazing of SiO2f/SiO2 composite and Invar alloy with Cu-25Sn-10Ti",

abstract = "The Invar alloy was brazed to SiO2f/SiO2 composite using Cu-25Sn-10Ti filler alloy. The interfacial microstructure of joint was analyzed and its formation mechanism was discussed, and also the impact of interfacial microstructure on shear strength of joints at different holding time was studied. Results show that continuous interfacial reaction layer has been formed at both sides of the base materials at brazing temperature 880°C and holding time for 15 min, while the typical interfacial microstructure was Invar alloy/Fe2Ti+Cu(s, s)+(Ni, Fe, Cu)2TiSn/Cu (s, s)+Cu41Sn11+CuTi/TiSi + Ti2O3/SiO2f/SiO2 composite. Holding time increasing would enlarge the thickness of TiSi Ti2O3 layer near SiO2f/SiO2 composite, and Fe2Ti particles would turn into blocks. The shear strength of joint would also change with increasing of holding time. The shear strength of the joints reaches a maximum of 11.86 MPa when the temperature is 880°C and the holding time is 15 min.",

keywords = "Brazing, Interfacial microstructure, Invar alloy, Shear strength",

author = "Dalei Zhang and Junlei Qi and Lixia Zhang and Jicai Feng and Yingchun Liang",

year = "2014",

month = mar,

language = "英语",

volume = "35",

pages = "53--56",

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

issn = "0253-360X",

publisher = "Harbin Research Institute of Welding",

number = "3",

}

TY - JOUR

T1 - Active brazing of SiO2f/SiO2 composite and Invar alloy with Cu-25Sn-10Ti

AU - Zhang, Dalei

AU - Qi, Junlei

AU - Zhang, Lixia

AU - Feng, Jicai

AU - Liang, Yingchun

PY - 2014/3

Y1 - 2014/3

N2 - The Invar alloy was brazed to SiO2f/SiO2 composite using Cu-25Sn-10Ti filler alloy. The interfacial microstructure of joint was analyzed and its formation mechanism was discussed, and also the impact of interfacial microstructure on shear strength of joints at different holding time was studied. Results show that continuous interfacial reaction layer has been formed at both sides of the base materials at brazing temperature 880°C and holding time for 15 min, while the typical interfacial microstructure was Invar alloy/Fe2Ti+Cu(s, s)+(Ni, Fe, Cu)2TiSn/Cu (s, s)+Cu41Sn11+CuTi/TiSi + Ti2O3/SiO2f/SiO2 composite. Holding time increasing would enlarge the thickness of TiSi Ti2O3 layer near SiO2f/SiO2 composite, and Fe2Ti particles would turn into blocks. The shear strength of joint would also change with increasing of holding time. The shear strength of the joints reaches a maximum of 11.86 MPa when the temperature is 880°C and the holding time is 15 min.

AB - The Invar alloy was brazed to SiO2f/SiO2 composite using Cu-25Sn-10Ti filler alloy. The interfacial microstructure of joint was analyzed and its formation mechanism was discussed, and also the impact of interfacial microstructure on shear strength of joints at different holding time was studied. Results show that continuous interfacial reaction layer has been formed at both sides of the base materials at brazing temperature 880°C and holding time for 15 min, while the typical interfacial microstructure was Invar alloy/Fe2Ti+Cu(s, s)+(Ni, Fe, Cu)2TiSn/Cu (s, s)+Cu41Sn11+CuTi/TiSi + Ti2O3/SiO2f/SiO2 composite. Holding time increasing would enlarge the thickness of TiSi Ti2O3 layer near SiO2f/SiO2 composite, and Fe2Ti particles would turn into blocks. The shear strength of joint would also change with increasing of holding time. The shear strength of the joints reaches a maximum of 11.86 MPa when the temperature is 880°C and the holding time is 15 min.

KW - Brazing

KW - Interfacial microstructure

KW - Invar alloy

KW - Shear strength

UR - https://www.scopus.com/pages/publications/84898680579

M3 - 文章

AN - SCOPUS:84898680579

SN - 0253-360X

VL - 35

SP - 53

EP - 56

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 3

ER -

Active brazing of SiO_2f/SiO₂ composite and Invar alloy with Cu-25Sn-10Ti

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Keywords

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