Microstructure and properties of ultrafine-grained W-25 wt.%Cu composites doped with CNTs | Zendy

Qiao Zhang | Zendy; Shuhua Liang | Zendy; Longchao Zhuo | Zendy

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Microstructure and properties of ultrafine-grained W-25 wt.%Cu composites doped with CNTs

Author(s) -

Qiao Zhang,

Shuhua Liang,

Longchao Zhuo

Publication year - 2018

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2018.11.003

Subject(s) - materials science , microstructure , sintering , composite material , composite number , ball mill , carbon nanotube , doping , tungsten carbide , tungsten , compressive strength , metallurgy , optoelectronics

In the present work, the ultrafine-grained W-25 wt.%Cu composites doped with multi-walled carbon nanotubes (CNTs) have been prepared through combined processes of high-energy ball-milling, liquid-phase sintering and infiltration. Furthermore, the microstructure, hardness and electrical conductivity of the ultrafine-grained W-Cu composites doped with different contents of CNTs were investigated. Meanwhile, the wear resistance, compressive performance at different temperatures and arc erosion resistance were evaluated in comparison with the W-Cu composite without CNTs. The results revealed that the hardness, wear resistance, compressive performance and arc erosion resistance of the W-Cu composites doped with CNTs were enhanced dramatically due to the introduction of tungsten carbide phases after sintering and infiltration.

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