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 language | English |
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Pages (from-to) | 266-269 |
Number of pages | 4 |
Journal | Fenmo Yejin Jishu/Powder Metallurgy Technology |
Volume | 22 |
Issue number | 5 |
Publication status | Published - 2004 Oct 1 |
Keywords
- High energy milling
- Relative density
- Thermal conductivity
- W-Cu composite
ASJC Scopus subject areas
- Mechanics of Materials
- Metals and Alloys