Thermomechanical process producing W-Cu composite powder with ultrafine dispersion structure

Yunping Li, Xuanhui Qu, Zhoushun Zheng, Changming Lei

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A thermomechanical process producing W-Cu composite powder with ultrafine dispersion structure was developed on the basis of the co-reduction method of W-Cu oxide powders. The produced powder was investigated by SEM, XRD, particle size distribution, oxygen contort and sintering behaviour. The results show that W-Cu oxide powders milled for 3-10 hrs are thoroughly reduced at relative low temperature and ultrafine W-Cu composite powder with high dispersion is produced by high-energy-milling the oxide powders in short time. W-Cu composite material sintered at 1200°C has relative density of 99.5% and thermal conductivity of 205 W·m-1 ·K-1.

Original languageEnglish
Pages (from-to)266-269
Number of pages4
JournalFenmo Yejin Jishu/Powder Metallurgy Technology
Volume22
Issue number5
Publication statusPublished - 2004 Oct 1

Keywords

  • High energy milling
  • Relative density
  • Thermal conductivity
  • W-Cu composite

ASJC Scopus subject areas

  • Mechanics of Materials
  • Metals and Alloys

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