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Chin J Mater Res  2009, Vol. 23 Issue (5): 495-499    DOI:
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The microstructure and properties of fine crystalline Al–50Si alloy prepared by high–energy ball milling
WANG Fei;  CAI Hui WANG;  Yaping
Supported by National Natural Science Foundation of China No. 50871078 and New Century Excellent Talents Project of Ministry of Education No.NCET–07–0679.
Cite this article: 

WANG Fei CAI Hui WANG Yaping. The microstructure and properties of fine crystalline Al–50Si alloy prepared by high–energy ball milling. Chin J Mater Res, 2009, 23(5): 495-499.

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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.

Key words:  metallic materials      fine crystalline      Al–Si alloy      high–energy ball milling      electronic packaging     
Received:  02 April 2009     
ZTFLH: 

TG146

 
Fund: 

Supported by National Natural Science Foundation of China No. 50871078 and New Century Excellent Talents Project of Ministry of Education No.NCET–07–0679.

URL: 

https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2009/V23/I5/495

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