Brazing of Ti-coated SiC using a CoFeCrNiCu high entropy alloy filler via electric field-assisted sintering

Gang Wang; Yihe Liu; Miao Wang; Yunlong Yang; Yu Zhao; Rujie He; Caiwang Tan; Wei Wang; Xiaobing Zhou

doi:10.1016/j.jmrt.2023.02.134

Brazing of Ti-coated SiC using a CoFeCrNiCu high entropy alloy filler via electric field-assisted sintering

Gang Wang, Yihe Liu, Miao Wang^*, Yunlong Yang, Yu Zhao, Rujie He^*, Caiwang Tan, Wei Wang, Xiaobing Zhou^*

^*Corresponding author for this work

Institute of Advanced Structure Technology

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

12 Citations (Scopus)

Abstract

Electric field-assisted sintering technology (FAST) was used to join SiC ceramic by using a CoFeCrNiCu high-entropy alloy filler. A thin Ti film was deposited on SiC surface by physical vapor deposition to reduce the residual thermal stress in the joint. The microstructure, bending strength, and bonding mechanism were systematically investigated. It was found that a discontinuous TiC layer could be formed at the interface and the interfacial reaction products changed with different brazing temperatures. A joint with a bending strength of 72 MPa was achieved at 1200 °C, which is 73% higher than that of the SiC brazed without Ti coating. This work provides a new insight in the interfacial design of ceramic brazing with high mechanical properties.

Original language	English
Pages (from-to)	5142-5151
Number of pages	10
Journal	Journal of Materials Research and Technology
Volume	23
DOIs	https://doi.org/10.1016/j.jmrt.2023.02.134
Publication status	Published - 1 Mar 2023

Keywords

Brazing
Electric field-assisted sintering
High entropy alloy
Interfacial reaction
SiC

Access to Document

10.1016/j.jmrt.2023.02.134

Cite this

Wang, G., Liu, Y., Wang, M., Yang, Y., Zhao, Y., He, R., Tan, C., Wang, W., & Zhou, X. (2023). Brazing of Ti-coated SiC using a CoFeCrNiCu high entropy alloy filler via electric field-assisted sintering. Journal of Materials Research and Technology, 23, 5142-5151. https://doi.org/10.1016/j.jmrt.2023.02.134

@article{8a75dbe67d664789a32c7f766b2ce10c,

title = "Brazing of Ti-coated SiC using a CoFeCrNiCu high entropy alloy filler via electric field-assisted sintering",

abstract = "Electric field-assisted sintering technology (FAST) was used to join SiC ceramic by using a CoFeCrNiCu high-entropy alloy filler. A thin Ti film was deposited on SiC surface by physical vapor deposition to reduce the residual thermal stress in the joint. The microstructure, bending strength, and bonding mechanism were systematically investigated. It was found that a discontinuous TiC layer could be formed at the interface and the interfacial reaction products changed with different brazing temperatures. A joint with a bending strength of 72 MPa was achieved at 1200 °C, which is 73% higher than that of the SiC brazed without Ti coating. This work provides a new insight in the interfacial design of ceramic brazing with high mechanical properties.",

keywords = "Brazing, Electric field-assisted sintering, High entropy alloy, Interfacial reaction, SiC",

author = "Gang Wang and Yihe Liu and Miao Wang and Yunlong Yang and Yu Zhao and Rujie He and Caiwang Tan and Wei Wang and Xiaobing Zhou",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors",

year = "2023",

month = mar,

day = "1",

doi = "10.1016/j.jmrt.2023.02.134",

language = "English",

volume = "23",

pages = "5142--5151",

journal = "Journal of Materials Research and Technology",

issn = "2238-7854",

publisher = "Elsevier Editora Ltda",

}

TY - JOUR

T1 - Brazing of Ti-coated SiC using a CoFeCrNiCu high entropy alloy filler via electric field-assisted sintering

AU - Wang, Gang

AU - Liu, Yihe

AU - Wang, Miao

AU - Yang, Yunlong

AU - Zhao, Yu

AU - He, Rujie

AU - Tan, Caiwang

AU - Wang, Wei

AU - Zhou, Xiaobing

PY - 2023/3/1

Y1 - 2023/3/1

N2 - Electric field-assisted sintering technology (FAST) was used to join SiC ceramic by using a CoFeCrNiCu high-entropy alloy filler. A thin Ti film was deposited on SiC surface by physical vapor deposition to reduce the residual thermal stress in the joint. The microstructure, bending strength, and bonding mechanism were systematically investigated. It was found that a discontinuous TiC layer could be formed at the interface and the interfacial reaction products changed with different brazing temperatures. A joint with a bending strength of 72 MPa was achieved at 1200 °C, which is 73% higher than that of the SiC brazed without Ti coating. This work provides a new insight in the interfacial design of ceramic brazing with high mechanical properties.

AB - Electric field-assisted sintering technology (FAST) was used to join SiC ceramic by using a CoFeCrNiCu high-entropy alloy filler. A thin Ti film was deposited on SiC surface by physical vapor deposition to reduce the residual thermal stress in the joint. The microstructure, bending strength, and bonding mechanism were systematically investigated. It was found that a discontinuous TiC layer could be formed at the interface and the interfacial reaction products changed with different brazing temperatures. A joint with a bending strength of 72 MPa was achieved at 1200 °C, which is 73% higher than that of the SiC brazed without Ti coating. This work provides a new insight in the interfacial design of ceramic brazing with high mechanical properties.

KW - Brazing

KW - Electric field-assisted sintering

KW - High entropy alloy

KW - Interfacial reaction

KW - SiC

UR - http://www.scopus.com/inward/record.url?scp=85149765735&partnerID=8YFLogxK

U2 - 10.1016/j.jmrt.2023.02.134

DO - 10.1016/j.jmrt.2023.02.134

M3 - Article

AN - SCOPUS:85149765735

SN - 2238-7854

VL - 23

SP - 5142

EP - 5151

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Brazing of Ti-coated SiC using a CoFeCrNiCu high entropy alloy filler via electric field-assisted sintering

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this