Advanced
search

To read this content please select one of the options below:

Electrical wear performance of copper matrix composites reinforced with hybrid CNTs and TiB2 particles

Yubo Yang (School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China)
Xiuhua Guo (School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China)
Kexing Song (School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China)
Fei Long (School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China)
Xu Wang (School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China)
Shaolin Li (School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China)
Zhou Li (School of Materials Science and Engineering, Central South University, Changsha, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 15 April 2022

Issue publication date: 23 June 2022

148

Abstract

Purpose

Copper matrix composites are widely used in high-voltage switches, electrified railways and other electric friction fields. The purpose of this study is to improve its wear resistance and investigate the effect of hybrid carbon nanotubes (CNTs) and titanium diboride (TiB2) particles reinforced copper matrix composites on electrical wear performance.

Design/methodology/approach

CNTs and TiB2 particles were introduced into copper matrix simultaneously by powder metallurgy combined with electroless copper plating. Electrical wear performance of the composites was studied on self-made pin on disk electrical wear tester.

Findings

The results show that the friction coefficient and wear rate of (1CNTs–4TiB2)/Cu composite are respectively reduced by 40% and 25.3%, compared with single TiB2/Cu composites. The micron-sized TiB2 particles can hinder the plastic deformation of composites, and bear part of the load to weaken the wear rate of composites. CNTs with the self-lubricating property can form lubricating layer to reduce the friction coefficient of composites.

Originality/value

This work can provide a design method for further improving the wear properties of TiB2/Cu composites.

Keywords

Acknowledgements

Funding: This work was supported by the project of Key research and development and Promotion Special Project (Scientific and Technological Research) in Henan Province (212102210110), Henan Plan Project for College Youth Backbone Teacher (2018GGJS045), Strategic Consulting Research Project of Henan Institute of China Engineering Development Strategies (2021HENZDA02) and China Postdoctoral Science Foundation (2020T130172, 2020M682288).

Citation

Yang, Y., Guo, X., Song, K., Long, F., Wang, X., Li, S. and Li, Z. (2022), "Electrical wear performance of copper matrix composites reinforced with hybrid CNTs and TiB2 particles", Industrial Lubrication and Tribology, Vol. 74 No. 6, pp. 609-618. https://doi.org/10.1108/ILT-12-2021-0474

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

Related articles

Manage cookies

We’re listening — tell us what you think

Join us on our journey