Joining of SiO2 ceramic and TC4 alloy by nanoparticles modified brazing filler metal

Hong BIAN; Yanyu SONG; Duo LIU; Yuzhen LEI; Xiaoguo SONG; Jian CAO

doi:10.1016/j.cja.2019.03.040

Joining of SiO₂ ceramic and TC4 alloy by nanoparticles modified brazing filler metal

Hong BIAN
, Yanyu SONG
, Duo LIU^*
, Yuzhen LEI
, Xiaoguo SONG
, Jian CAO

^*Corresponding author for this work

Harbin Institute of Technology Weihai

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

49 Scopus citations

Abstract

Nano-Al₂O₃ particles modified AgCuNi filler was adopted to braze the SiO₂ ceramic and TC4. The effects of filler size as well as the brazing temperature on the interfacial microstructure and mechanical property of the joints were investigated. Nanoscale filler reduced the phases dimension and promoted the homogeneous distribution of microstructure, obtaining a higher joint strength when compared to microscale filler. The increase of brazing temperature made the accelerating dissolution and diffusion of Ti, which promoted the increase of thickness of Ti₄O₇ + TiSi₂ layer adjacent to SiO₂ ceramic and diffusion layer zone nearby TC4 alloy. The hypoeutectic structure was produced in the brazing seam due to the high Ti content. The maximum shear strength of ∼40 MPa was obtained at 950 °C for 10 min.

Original language	English
Pages (from-to)	383-390
Number of pages	8
Journal	Chinese Journal of Aeronautics
Volume	33
Issue number	1
DOIs	https://doi.org/10.1016/j.cja.2019.03.040
State	Published - Jan 2020

Keywords

Brazing
Microstructure
Nanoparticles modified filler
SiO ceramic
TC4

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10.1016/j.cja.2019.03.040

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title = "Joining of SiO2 ceramic and TC4 alloy by nanoparticles modified brazing filler metal",

abstract = "Nano-Al2O3 particles modified AgCuNi filler was adopted to braze the SiO2 ceramic and TC4. The effects of filler size as well as the brazing temperature on the interfacial microstructure and mechanical property of the joints were investigated. Nanoscale filler reduced the phases dimension and promoted the homogeneous distribution of microstructure, obtaining a higher joint strength when compared to microscale filler. The increase of brazing temperature made the accelerating dissolution and diffusion of Ti, which promoted the increase of thickness of Ti4O7 + TiSi2 layer adjacent to SiO2 ceramic and diffusion layer zone nearby TC4 alloy. The hypoeutectic structure was produced in the brazing seam due to the high Ti content. The maximum shear strength of ∼40 MPa was obtained at 950 °C for 10 min.",

keywords = "Brazing, Microstructure, Nanoparticles modified filler, SiO ceramic, TC4",

author = "Hong BIAN and Yanyu SONG and Duo LIU and Yuzhen LEI and Xiaoguo SONG and Jian CAO",

note = "Publisher Copyright: {\textcopyright} 2019 Chinese Society of Aeronautics and Astronautics",

year = "2020",

month = jan,

doi = "10.1016/j.cja.2019.03.040",

language = "英语",

volume = "33",

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}

TY - JOUR

T1 - Joining of SiO2 ceramic and TC4 alloy by nanoparticles modified brazing filler metal

AU - BIAN, Hong

AU - SONG, Yanyu

AU - LIU, Duo

AU - LEI, Yuzhen

AU - SONG, Xiaoguo

AU - CAO, Jian

PY - 2020/1

Y1 - 2020/1

N2 - Nano-Al2O3 particles modified AgCuNi filler was adopted to braze the SiO2 ceramic and TC4. The effects of filler size as well as the brazing temperature on the interfacial microstructure and mechanical property of the joints were investigated. Nanoscale filler reduced the phases dimension and promoted the homogeneous distribution of microstructure, obtaining a higher joint strength when compared to microscale filler. The increase of brazing temperature made the accelerating dissolution and diffusion of Ti, which promoted the increase of thickness of Ti4O7 + TiSi2 layer adjacent to SiO2 ceramic and diffusion layer zone nearby TC4 alloy. The hypoeutectic structure was produced in the brazing seam due to the high Ti content. The maximum shear strength of ∼40 MPa was obtained at 950 °C for 10 min.

AB - Nano-Al2O3 particles modified AgCuNi filler was adopted to braze the SiO2 ceramic and TC4. The effects of filler size as well as the brazing temperature on the interfacial microstructure and mechanical property of the joints were investigated. Nanoscale filler reduced the phases dimension and promoted the homogeneous distribution of microstructure, obtaining a higher joint strength when compared to microscale filler. The increase of brazing temperature made the accelerating dissolution and diffusion of Ti, which promoted the increase of thickness of Ti4O7 + TiSi2 layer adjacent to SiO2 ceramic and diffusion layer zone nearby TC4 alloy. The hypoeutectic structure was produced in the brazing seam due to the high Ti content. The maximum shear strength of ∼40 MPa was obtained at 950 °C for 10 min.

KW - Brazing

KW - Microstructure

KW - Nanoparticles modified filler

KW - SiO ceramic

KW - TC4

UR - https://www.scopus.com/pages/publications/85069449163

U2 - 10.1016/j.cja.2019.03.040

DO - 10.1016/j.cja.2019.03.040

M3 - 文章

AN - SCOPUS:85069449163

SN - 1000-9361

VL - 33

SP - 383

EP - 390

JO - Chinese Journal of Aeronautics

JF - Chinese Journal of Aeronautics

IS - 1

ER -

Joining of SiO₂ ceramic and TC4 alloy by nanoparticles modified brazing filler metal

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Keywords

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