Interfacial microstructure and properties of in-situ TiB reinforced ZrB2-SiC joints

Weiqi Yang; Peng He; Tiesong Lin; Dechang Jia

Interfacial microstructure and properties of in-situ TiB reinforced ZrB₂-SiC joints

Weiqi Yang
, Peng He
, Tiesong Lin^*
, 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

4 Scopus citations

Abstract

The ZrB₂-SiC ceramics were joined to themselves using Ag-Cu eutectic/Ti lamination as interlayer. The SEM and EDS analyses demonstrate that ZrB₂ could react with Ti in brazing alloy to form an in situ TiB whisker array with preferred orientation. The typical microstructure of the joint is ZS/TiB (Ag (s, s))/TiCu (AgCu₄Zr)/Ag (s, s)/TiCu (AgCu₄Zr)/TiB (Ag (s, s))/ZS. The microstructural evolution at various brazing temperatures was investigated. It is revealed that the ZrB₂ decomposing temperature is 860°C and TiB formation temperature is 880°C. The maximum shear strength of 134 MPa is obtained when joining at 900°C for 10 min. The high strength mainly benefits from stress accommodation by TiB and gradient transition from the ceramic to the seam center.

Original language	English
Pages (from-to)	901-905
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	43
Issue number	4
State	Published - Apr 2014

Keywords

Brazing
Ceramic
Interfacial microstructure
Mechanical performance

Cite this

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title = "Interfacial microstructure and properties of in-situ TiB reinforced ZrB2-SiC joints",

abstract = "The ZrB2-SiC ceramics were joined to themselves using Ag-Cu eutectic/Ti lamination as interlayer. The SEM and EDS analyses demonstrate that ZrB2 could react with Ti in brazing alloy to form an in situ TiB whisker array with preferred orientation. The typical microstructure of the joint is ZS/TiB (Ag (s, s))/TiCu (AgCu4Zr)/Ag (s, s)/TiCu (AgCu4Zr)/TiB (Ag (s, s))/ZS. The microstructural evolution at various brazing temperatures was investigated. It is revealed that the ZrB2 decomposing temperature is 860°C and TiB formation temperature is 880°C. The maximum shear strength of 134 MPa is obtained when joining at 900°C for 10 min. The high strength mainly benefits from stress accommodation by TiB and gradient transition from the ceramic to the seam center.",

keywords = "Brazing, Ceramic, Interfacial microstructure, Mechanical performance",

author = "Weiqi Yang and Peng He and Tiesong Lin and Dechang Jia",

year = "2014",

month = apr,

language = "英语",

volume = "43",

pages = "901--905",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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number = "4",

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TY - JOUR

T1 - Interfacial microstructure and properties of in-situ TiB reinforced ZrB2-SiC joints

AU - Yang, Weiqi

AU - He, Peng

AU - Lin, Tiesong

AU - Jia, Dechang

PY - 2014/4

Y1 - 2014/4

N2 - The ZrB2-SiC ceramics were joined to themselves using Ag-Cu eutectic/Ti lamination as interlayer. The SEM and EDS analyses demonstrate that ZrB2 could react with Ti in brazing alloy to form an in situ TiB whisker array with preferred orientation. The typical microstructure of the joint is ZS/TiB (Ag (s, s))/TiCu (AgCu4Zr)/Ag (s, s)/TiCu (AgCu4Zr)/TiB (Ag (s, s))/ZS. The microstructural evolution at various brazing temperatures was investigated. It is revealed that the ZrB2 decomposing temperature is 860°C and TiB formation temperature is 880°C. The maximum shear strength of 134 MPa is obtained when joining at 900°C for 10 min. The high strength mainly benefits from stress accommodation by TiB and gradient transition from the ceramic to the seam center.

AB - The ZrB2-SiC ceramics were joined to themselves using Ag-Cu eutectic/Ti lamination as interlayer. The SEM and EDS analyses demonstrate that ZrB2 could react with Ti in brazing alloy to form an in situ TiB whisker array with preferred orientation. The typical microstructure of the joint is ZS/TiB (Ag (s, s))/TiCu (AgCu4Zr)/Ag (s, s)/TiCu (AgCu4Zr)/TiB (Ag (s, s))/ZS. The microstructural evolution at various brazing temperatures was investigated. It is revealed that the ZrB2 decomposing temperature is 860°C and TiB formation temperature is 880°C. The maximum shear strength of 134 MPa is obtained when joining at 900°C for 10 min. The high strength mainly benefits from stress accommodation by TiB and gradient transition from the ceramic to the seam center.

KW - Brazing

KW - Ceramic

KW - Interfacial microstructure

KW - Mechanical performance

UR - https://www.scopus.com/pages/publications/84900519797

M3 - 文章

AN - SCOPUS:84900519797

SN - 1002-185X

VL - 43

SP - 901

EP - 905

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 4

ER -

Interfacial microstructure and properties of in-situ TiB reinforced ZrB₂-SiC joints

Abstract

Keywords

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