Effect of holding time on microstructure and mechanical properties of Si3N4/Si3N4 joints brazed with Au58.7Ni36.5V4.8 filler alloy

Y. Sun; J. Zhang; G. H. Fan; Y. M. He; T. Shibayanagi

doi:10.1007/s10853-011-5539-z

Effect of holding time on microstructure and mechanical properties of Si₃N₄/Si₃N₄ joints brazed with Au58.7Ni36.5V4.8 filler alloy

Y. Sun
, J. Zhang^*
, G. H. Fan
, Y. M. He
, T. Shibayanagi

^*Corresponding author for this work

Harbin Institute of Technology
The University of Osaka

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

1 Scopus citations

Abstract

Si₃N₄ ceramics were brazed using Au-Ni-V metal foils at 1423 K for different holding times. Effect of holding time on microstructure and mechanical properties of the joints was investigated. The results indicate that a reaction layer of VN exists at the interface between Si₃N ₄ ceramic and filler alloy. With increasing holding time from 0 to 90 min, thickness of the VN reaction layer increases from 0.4 to 2.8 μm, obeying a linear relation. Mechanism of the interfacial reaction was discussed by calculating the formation of free energy of VN. No specific orientation relationship exists between VN reaction layer and Si₃N₄ ceramic. In addition, Ni₃Si intermetallic compound appears in the joint when the holding time increases to 90 min, resulting in the deterioration of the joint strength.

Original language	English
Pages (from-to)	5830-5837
Number of pages	8
Journal	Journal of Materials Science
Volume	46
Issue number	17
DOIs	https://doi.org/10.1007/s10853-011-5539-z
State	Published - Sep 2011
Externally published	Yes

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title = "Effect of holding time on microstructure and mechanical properties of Si3N4/Si3N4 joints brazed with Au58.7Ni36.5V4.8 filler alloy",

abstract = "Si3N4 ceramics were brazed using Au-Ni-V metal foils at 1423 K for different holding times. Effect of holding time on microstructure and mechanical properties of the joints was investigated. The results indicate that a reaction layer of VN exists at the interface between Si3N 4 ceramic and filler alloy. With increasing holding time from 0 to 90 min, thickness of the VN reaction layer increases from 0.4 to 2.8 μm, obeying a linear relation. Mechanism of the interfacial reaction was discussed by calculating the formation of free energy of VN. No specific orientation relationship exists between VN reaction layer and Si3N4 ceramic. In addition, Ni3Si intermetallic compound appears in the joint when the holding time increases to 90 min, resulting in the deterioration of the joint strength.",

author = "Y. Sun and J. Zhang and Fan, \{G. H.\} and He, \{Y. M.\} and T. Shibayanagi",

year = "2011",

month = sep,

doi = "10.1007/s10853-011-5539-z",

language = "英语",

volume = "46",

pages = "5830--5837",

journal = "Journal of Materials Science",

issn = "0022-2461",

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TY - JOUR

T1 - Effect of holding time on microstructure and mechanical properties of Si3N4/Si3N4 joints brazed with Au58.7Ni36.5V4.8 filler alloy

AU - Sun, Y.

AU - Zhang, J.

AU - Fan, G. H.

AU - He, Y. M.

AU - Shibayanagi, T.

PY - 2011/9

Y1 - 2011/9

N2 - Si3N4 ceramics were brazed using Au-Ni-V metal foils at 1423 K for different holding times. Effect of holding time on microstructure and mechanical properties of the joints was investigated. The results indicate that a reaction layer of VN exists at the interface between Si3N 4 ceramic and filler alloy. With increasing holding time from 0 to 90 min, thickness of the VN reaction layer increases from 0.4 to 2.8 μm, obeying a linear relation. Mechanism of the interfacial reaction was discussed by calculating the formation of free energy of VN. No specific orientation relationship exists between VN reaction layer and Si3N4 ceramic. In addition, Ni3Si intermetallic compound appears in the joint when the holding time increases to 90 min, resulting in the deterioration of the joint strength.

AB - Si3N4 ceramics were brazed using Au-Ni-V metal foils at 1423 K for different holding times. Effect of holding time on microstructure and mechanical properties of the joints was investigated. The results indicate that a reaction layer of VN exists at the interface between Si3N 4 ceramic and filler alloy. With increasing holding time from 0 to 90 min, thickness of the VN reaction layer increases from 0.4 to 2.8 μm, obeying a linear relation. Mechanism of the interfacial reaction was discussed by calculating the formation of free energy of VN. No specific orientation relationship exists between VN reaction layer and Si3N4 ceramic. In addition, Ni3Si intermetallic compound appears in the joint when the holding time increases to 90 min, resulting in the deterioration of the joint strength.

UR - https://www.scopus.com/pages/publications/79958204003

U2 - 10.1007/s10853-011-5539-z

DO - 10.1007/s10853-011-5539-z

M3 - 文章

AN - SCOPUS:79958204003

SN - 0022-2461

VL - 46

SP - 5830

EP - 5837

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 17

ER -

Effect of holding time on microstructure and mechanical properties of Si₃N₄/Si₃N₄ joints brazed with Au58.7Ni36.5V4.8 filler alloy

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