材料科学技术(英文版)2022，Vol.128Issue(33) ：22-30.

Optimized strength and conductivity of multi-scale copper alloy/metallic glass composites tuned by a one-step spark plasma sintering(SPS)process

Weizong Baoa Jie Chena Guoqiang Xie
材料科学技术(英文版)2022，Vol.128Issue(33) ：22-30.
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Optimized strength and conductivity of multi-scale copper alloy/metallic glass composites tuned by a one-step spark plasma sintering(SPS)process

Weizong Baoa 1Jie Chena 1Guoqiang Xie2
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作者信息

  • 1. School of Materials Science and Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China
  • 2. School of Materials Science and Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China;State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,China
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Abstract

A superiority in interfacial bonding is favorable to fabricate high-strength conductive composites for elec-trical contact applications.In the present work,high strength and high conductivity multi-scale metallic glass composites(including micron-scale CuZrAl metallic glass reinforcement,hundred-nanometer-scale CuCrZr crystalline grain matrix,and nano-scale precipitated phase)were fabricated by a one-step spark plasma sintering(SPS).The strength and conductivity of the bulk copper matrix metallic glass compos-ites(BCMGCs)were enhanced simultaneously with the increase in the sintering pressure of the SPS.The excellent performance is attributed to the improved interfacial bonding between the metallic glass re-inforcement and the copper alloy matrix due to the high pressure assisted by temperature and pulsed current.In particular,the precipitation of nanoprecipitates at the interface further reduces the interfacial resistance and improves the mechanical properties of the composites.This work broadens the horizon for the selection and optimization of reinforcements and manufacturing processes for high-performance electrical contact materials(ECMs).

Key words

CuZrAl metallic glass/Spark plasma sintering/Mechanical properties/Electrical performance

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基金项目

Shenzhen Knowledge Innovation Plan-Fundamental Research(Discipline Distribution)(JCYJ20180507184623297)

国家自然科学基金(51871077)

Guangdong Basic and Applied Basic Research Foundation(2021A1515012626)

Shenzhen Science and Technology Plan-Technology Innovation(KQJSCX20180328165656256)

Development and Reform Commission of Shenzhen Municipality-Shenzhen Research and Development Center for Albased Hydrogen Hyd(ZX20190229)

Startup Foundation from Shenzhen and Startup Foundation from Harbin Institute of Technology(Shenzhen)()

出版年

2022
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI
影响因子：0.657
ISSN：1005-0302
参考文献量45
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