Abstract
High-energy ball milling and powder metallurgy process were applied to Al-Si powder to obtain Al-50Si composite. The microstructure and phases of the powder and alloy were investigated. And the density, hardness and TDC (thermal diffusivity coefficient) of the alloy were tested. The results show that Si particles were refined during high-energy ball milling process. The diameter of Si particles in the ball milled powder was between 1-15 μm. The diameter of Si particles in the consolidated alloy increased to 5-30 μm. The TDC of the alloy was 55 mm2·s-1 at room temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 495-499 |
| Number of pages | 5 |
| Journal | Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research |
| Volume | 23 |
| Issue number | 5 |
| State | Published - Oct 2009 |
Keywords
- Al-Si alloy
- Electronic packaging
- Fine crystalline
- High-energy ball milling
- Metallic materials
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