Microstructural and mechanical characterization of the Si3N4/Si3N4 joint brazed using Au-Ni-V filler alloys

J. Zhang; Y. Sun

doi:10.1016/j.jeurceramsoc.2009.08.015

Microstructural and mechanical characterization of the Si₃N₄/Si₃N₄ joint brazed using Au-Ni-V filler alloys

J. Zhang^*
, Y. Sun

^*Corresponding author for this work

Harbin Institute of Technology

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

13 Scopus citations

Abstract

In this study, two Au-Ni-V filler metals were used to braze Si₃N₄ ceramic in the form of foils. The effects of brazing temperature and V content in the filler alloy on microstructure and bonding strength of the joint were studied. The results reveal that a VN reaction layer with a thickness about 4 μm was formed at the interface between Si₃N₄ substrate and filler alloy. With increasing brazing temperature or V content the thickness of VN reaction layer increased. A maximum joint bending strength of 242 MPa was achieved when the joint was brazed at the temperature of 1423 K for 30 min using Au58.7Ni36.5V4.8 filler alloy. The bonding mechanism was discussed with reference to the discovered phases and brazing parameters. Crown

Original language	English
Pages (from-to)	751-757
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	30
Issue number	3
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2009.08.015
State	Published - Feb 2010
Externally published	Yes

Keywords

Au-Ni-V filler alloy
Joining
Mechanical properties
Microstructure
SiN

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10.1016/j.jeurceramsoc.2009.08.015

Cite this

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title = "Microstructural and mechanical characterization of the Si3N4/Si3N4 joint brazed using Au-Ni-V filler alloys",

abstract = "In this study, two Au-Ni-V filler metals were used to braze Si3N4 ceramic in the form of foils. The effects of brazing temperature and V content in the filler alloy on microstructure and bonding strength of the joint were studied. The results reveal that a VN reaction layer with a thickness about 4 μm was formed at the interface between Si3N4 substrate and filler alloy. With increasing brazing temperature or V content the thickness of VN reaction layer increased. A maximum joint bending strength of 242 MPa was achieved when the joint was brazed at the temperature of 1423 K for 30 min using Au58.7Ni36.5V4.8 filler alloy. The bonding mechanism was discussed with reference to the discovered phases and brazing parameters. Crown",

keywords = "Au-Ni-V filler alloy, Joining, Mechanical properties, Microstructure, SiN",

author = "J. Zhang and Y. Sun",

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journal = "Journal of the European Ceramic Society",

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T1 - Microstructural and mechanical characterization of the Si3N4/Si3N4 joint brazed using Au-Ni-V filler alloys

AU - Zhang, J.

AU - Sun, Y.

PY - 2010/2

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N2 - In this study, two Au-Ni-V filler metals were used to braze Si3N4 ceramic in the form of foils. The effects of brazing temperature and V content in the filler alloy on microstructure and bonding strength of the joint were studied. The results reveal that a VN reaction layer with a thickness about 4 μm was formed at the interface between Si3N4 substrate and filler alloy. With increasing brazing temperature or V content the thickness of VN reaction layer increased. A maximum joint bending strength of 242 MPa was achieved when the joint was brazed at the temperature of 1423 K for 30 min using Au58.7Ni36.5V4.8 filler alloy. The bonding mechanism was discussed with reference to the discovered phases and brazing parameters. Crown

AB - In this study, two Au-Ni-V filler metals were used to braze Si3N4 ceramic in the form of foils. The effects of brazing temperature and V content in the filler alloy on microstructure and bonding strength of the joint were studied. The results reveal that a VN reaction layer with a thickness about 4 μm was formed at the interface between Si3N4 substrate and filler alloy. With increasing brazing temperature or V content the thickness of VN reaction layer increased. A maximum joint bending strength of 242 MPa was achieved when the joint was brazed at the temperature of 1423 K for 30 min using Au58.7Ni36.5V4.8 filler alloy. The bonding mechanism was discussed with reference to the discovered phases and brazing parameters. Crown

KW - Au-Ni-V filler alloy

KW - Joining

KW - Mechanical properties

KW - Microstructure

KW - SiN

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DO - 10.1016/j.jeurceramsoc.2009.08.015

M3 - 文章

AN - SCOPUS:70449519054

SN - 0955-2219

VL - 30

SP - 751

EP - 757

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 3

ER -

Microstructural and mechanical characterization of the Si₃N₄/Si₃N₄ joint brazed using Au-Ni-V filler alloys

Abstract

Keywords

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