Microstructure and mechanical properties of ZrB2-SiC joints fabricated by a contact-reactive brazing technique with Ti and Ni interlayers

Weiqi Yang; Tiesong Lin; Peng He; Hongmei Wei; Lili Xing; Dechang Jia

doi:10.1016/j.ceramint.2013.12.065

Microstructure and mechanical properties of ZrB₂-SiC joints fabricated by a contact-reactive brazing technique with Ti and Ni interlayers

Weiqi Yang
, Tiesong Lin^*
, Peng He
, Hongmei Wei
, Lili Xing
, Dechang Jia

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

37 Scopus citations

Abstract

A contact-reaction brazing technique with Ti and Ni interlayers was used to join ZrB₂-SiC ceramics. The influence of Ti-Ni stack methods and Ti content to the microstructure of the joint was investigated. It was found that Ni could infiltrate into ZrB₂-SiC during the heating process and led to excessive interfacial reactions. The TiB whiskers could be in situ synthesized in all range of Ti concentration (55-79 at% Ti) with Ti/Ni/Ti stack foils. Due to the diffusion behavior of Ti, B atoms and low interfacial energy of TiB in TiNi phase, a cross woven structure of TiB whisker was produced in the brazing seam. The microhardness tests demonstrated tight bonding between TiB and the matrix. The highest shear strength of 134 MPa was obtained from 65 at% Ti.

Original language	English
Pages (from-to)	7253-7260
Number of pages	8
Journal	Ceramics International
Volume	40
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2013.12.065
State	Published - Jun 2014

Keywords

A. Joining
B. Interfaces
C. Mechanical properties
ZrB-SiC

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10.1016/j.ceramint.2013.12.065

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title = "Microstructure and mechanical properties of ZrB2-SiC joints fabricated by a contact-reactive brazing technique with Ti and Ni interlayers",

abstract = "A contact-reaction brazing technique with Ti and Ni interlayers was used to join ZrB2-SiC ceramics. The influence of Ti-Ni stack methods and Ti content to the microstructure of the joint was investigated. It was found that Ni could infiltrate into ZrB2-SiC during the heating process and led to excessive interfacial reactions. The TiB whiskers could be in situ synthesized in all range of Ti concentration (55-79 at\% Ti) with Ti/Ni/Ti stack foils. Due to the diffusion behavior of Ti, B atoms and low interfacial energy of TiB in TiNi phase, a cross woven structure of TiB whisker was produced in the brazing seam. The microhardness tests demonstrated tight bonding between TiB and the matrix. The highest shear strength of 134 MPa was obtained from 65 at\% Ti.",

keywords = "A. Joining, B. Interfaces, C. Mechanical properties, ZrB-SiC",

author = "Weiqi Yang and Tiesong Lin and Peng He and Hongmei Wei and Lili Xing and Dechang Jia",

year = "2014",

month = jun,

doi = "10.1016/j.ceramint.2013.12.065",

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journal = "Ceramics International",

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TY - JOUR

T1 - Microstructure and mechanical properties of ZrB2-SiC joints fabricated by a contact-reactive brazing technique with Ti and Ni interlayers

AU - Yang, Weiqi

AU - Lin, Tiesong

AU - He, Peng

AU - Wei, Hongmei

AU - Xing, Lili

AU - Jia, Dechang

PY - 2014/6

Y1 - 2014/6

N2 - A contact-reaction brazing technique with Ti and Ni interlayers was used to join ZrB2-SiC ceramics. The influence of Ti-Ni stack methods and Ti content to the microstructure of the joint was investigated. It was found that Ni could infiltrate into ZrB2-SiC during the heating process and led to excessive interfacial reactions. The TiB whiskers could be in situ synthesized in all range of Ti concentration (55-79 at% Ti) with Ti/Ni/Ti stack foils. Due to the diffusion behavior of Ti, B atoms and low interfacial energy of TiB in TiNi phase, a cross woven structure of TiB whisker was produced in the brazing seam. The microhardness tests demonstrated tight bonding between TiB and the matrix. The highest shear strength of 134 MPa was obtained from 65 at% Ti.

AB - A contact-reaction brazing technique with Ti and Ni interlayers was used to join ZrB2-SiC ceramics. The influence of Ti-Ni stack methods and Ti content to the microstructure of the joint was investigated. It was found that Ni could infiltrate into ZrB2-SiC during the heating process and led to excessive interfacial reactions. The TiB whiskers could be in situ synthesized in all range of Ti concentration (55-79 at% Ti) with Ti/Ni/Ti stack foils. Due to the diffusion behavior of Ti, B atoms and low interfacial energy of TiB in TiNi phase, a cross woven structure of TiB whisker was produced in the brazing seam. The microhardness tests demonstrated tight bonding between TiB and the matrix. The highest shear strength of 134 MPa was obtained from 65 at% Ti.

KW - A. Joining

KW - B. Interfaces

KW - C. Mechanical properties

KW - ZrB-SiC

UR - https://www.scopus.com/pages/publications/84894575671

U2 - 10.1016/j.ceramint.2013.12.065

DO - 10.1016/j.ceramint.2013.12.065

M3 - 文章

AN - SCOPUS:84894575671

SN - 0272-8842

VL - 40

SP - 7253

EP - 7260

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Microstructure and mechanical properties of ZrB₂-SiC joints fabricated by a contact-reactive brazing technique with Ti and Ni interlayers

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Keywords

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