Interfacial behavior of SiO2 ceramic/TC4 brazed joint

Duo Liu; Hongwei Niu; Xiaoguo Song; Jicai Feng; Hongyun Zhao

doi:10.12073/j.hjxb.20151124003

Interfacial behavior of SiO₂ ceramic/TC4 brazed joint

Duo Liu
, Hongwei Niu^*
, Xiaoguo Song
, Jicai Feng
, Hongyun Zhao

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology Weihai
Harbin Institute of Technology

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

Abstract

SiO₂/TC4 brazed joint was obtained by adopting AgCu/Ni composite interlayer filler, and thus a fine joint was formed. A home-made AgCuTiNi active filler which began to melt at 909.1℃ was used to brazing SiO₂ ceramics, and a good connection was formed. The effect of the Ti activities on interfacial behavior of the ceramic side in SiO₂/TC4 brazed joint was discussed by using SEM, XRD and other methods to analyze the interfacial microstructure of the two brazed joints mentioned above. It turned out that, the typical interfacial microstructure of TC4/ AgCu/Ni/SiO₂ brazed joint was: TC4 /Ti(s, s)+Ti₂(Ni, Cu)+Ti₂(Cu, Ni)/Ti₄O₇+TiSi₂/SiO₂; the typical interfacial microstructure of AgCuTiNi/SiO₂ sample was: Ti₂(Cu, Ni)/ Ti(s, s)+Ti₂(Ni, Cu)+Ti₂(Cu, Ni)/Ti₄O₇+ TiSi₂/ SiO₂. The thickness of reaction layer at the SiO₂ ceramic side was increased obviously with the Ti activities enhanced when the joints were brazed at 970℃ and held for same time. The thickness of reaction layer at SiO₂ ceramic side increased with the holding time prolonged at 970℃.

Original language	English
Pages (from-to)	39-42
Number of pages	4
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	38
Issue number	10
DOIs	https://doi.org/10.12073/j.hjxb.20151124003
State	Published - 25 Oct 2017

Keywords

Active filler metal
Brazing
Interfacial microstructure
SiO ceramic
TC4 alloy

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title = "Interfacial behavior of SiO2 ceramic/TC4 brazed joint",

abstract = "SiO2/TC4 brazed joint was obtained by adopting AgCu/Ni composite interlayer filler, and thus a fine joint was formed. A home-made AgCuTiNi active filler which began to melt at 909.1℃ was used to brazing SiO2 ceramics, and a good connection was formed. The effect of the Ti activities on interfacial behavior of the ceramic side in SiO2/TC4 brazed joint was discussed by using SEM, XRD and other methods to analyze the interfacial microstructure of the two brazed joints mentioned above. It turned out that, the typical interfacial microstructure of TC4/ AgCu/Ni/SiO2 brazed joint was: TC4 /Ti(s, s)+Ti2(Ni, Cu)+Ti2(Cu, Ni)/Ti4O7+TiSi2/SiO2; the typical interfacial microstructure of AgCuTiNi/SiO2 sample was: Ti2(Cu, Ni)/ Ti(s, s)+Ti2(Ni, Cu)+Ti2(Cu, Ni)/Ti4O7+ TiSi2/ SiO2. The thickness of reaction layer at the SiO2 ceramic side was increased obviously with the Ti activities enhanced when the joints were brazed at 970℃ and held for same time. The thickness of reaction layer at SiO2 ceramic side increased with the holding time prolonged at 970℃.",

keywords = "Active filler metal, Brazing, Interfacial microstructure, SiO ceramic, TC4 alloy",

author = "Duo Liu and Hongwei Niu and Xiaoguo Song and Jicai Feng and Hongyun Zhao",

year = "2017",

month = oct,

day = "25",

doi = "10.12073/j.hjxb.20151124003",

language = "英语",

volume = "38",

pages = "39--42",

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

issn = "0253-360X",

publisher = "Harbin Research Institute of Welding",

number = "10",

}

TY - JOUR

T1 - Interfacial behavior of SiO2 ceramic/TC4 brazed joint

AU - Liu, Duo

AU - Niu, Hongwei

AU - Song, Xiaoguo

AU - Feng, Jicai

AU - Zhao, Hongyun

PY - 2017/10/25

Y1 - 2017/10/25

N2 - SiO2/TC4 brazed joint was obtained by adopting AgCu/Ni composite interlayer filler, and thus a fine joint was formed. A home-made AgCuTiNi active filler which began to melt at 909.1℃ was used to brazing SiO2 ceramics, and a good connection was formed. The effect of the Ti activities on interfacial behavior of the ceramic side in SiO2/TC4 brazed joint was discussed by using SEM, XRD and other methods to analyze the interfacial microstructure of the two brazed joints mentioned above. It turned out that, the typical interfacial microstructure of TC4/ AgCu/Ni/SiO2 brazed joint was: TC4 /Ti(s, s)+Ti2(Ni, Cu)+Ti2(Cu, Ni)/Ti4O7+TiSi2/SiO2; the typical interfacial microstructure of AgCuTiNi/SiO2 sample was: Ti2(Cu, Ni)/ Ti(s, s)+Ti2(Ni, Cu)+Ti2(Cu, Ni)/Ti4O7+ TiSi2/ SiO2. The thickness of reaction layer at the SiO2 ceramic side was increased obviously with the Ti activities enhanced when the joints were brazed at 970℃ and held for same time. The thickness of reaction layer at SiO2 ceramic side increased with the holding time prolonged at 970℃.

AB - SiO2/TC4 brazed joint was obtained by adopting AgCu/Ni composite interlayer filler, and thus a fine joint was formed. A home-made AgCuTiNi active filler which began to melt at 909.1℃ was used to brazing SiO2 ceramics, and a good connection was formed. The effect of the Ti activities on interfacial behavior of the ceramic side in SiO2/TC4 brazed joint was discussed by using SEM, XRD and other methods to analyze the interfacial microstructure of the two brazed joints mentioned above. It turned out that, the typical interfacial microstructure of TC4/ AgCu/Ni/SiO2 brazed joint was: TC4 /Ti(s, s)+Ti2(Ni, Cu)+Ti2(Cu, Ni)/Ti4O7+TiSi2/SiO2; the typical interfacial microstructure of AgCuTiNi/SiO2 sample was: Ti2(Cu, Ni)/ Ti(s, s)+Ti2(Ni, Cu)+Ti2(Cu, Ni)/Ti4O7+ TiSi2/ SiO2. The thickness of reaction layer at the SiO2 ceramic side was increased obviously with the Ti activities enhanced when the joints were brazed at 970℃ and held for same time. The thickness of reaction layer at SiO2 ceramic side increased with the holding time prolonged at 970℃.

KW - Active filler metal

KW - Brazing

KW - Interfacial microstructure

KW - SiO ceramic

KW - TC4 alloy

UR - https://www.scopus.com/pages/publications/85037814217

U2 - 10.12073/j.hjxb.20151124003

DO - 10.12073/j.hjxb.20151124003

M3 - 文章

AN - SCOPUS:85037814217

SN - 0253-360X

VL - 38

SP - 39

EP - 42

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 10

ER -

Interfacial behavior of SiO₂ ceramic/TC4 brazed joint

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Keywords

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