Journal
MATERIALS & DESIGN
Volume 88, Issue -, Pages 1347-1352Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.09.048
Keywords
Metal-matrix composites; Particle-reinforced composites; Squeeze casting; Interface; Thermal conductivity; Diamond/Al
Categories
Funding
- National Natural Science Foundation of China [51301053]
- University Basic Fund of Harbin Institute of Technology [5710011113]
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A practical and feasible approach is demonstrated to dramatically enhance thermal conductivity of the diamond particle reinforced aluminum matrix composites by means of optimized squeeze casting for fabricating metal-matrix composites with good adhesive interface as well as minimum thermal boundary resistance. By controlling the processing route, the architecture of diamond-aluminum interface was tuned, and therefore the thermal conductivity was amazingly found to be enhanced by 89% (from 321 to 606 W/(m.K)), which was the highest value reported in the scientific literature to date for diamond/aluminum composites using squeeze-casting method. Meanwhile, the bending strength was increased by 124% (from 98 to 220 MPa). This study offers an easily scalable and low-cost route to construct a wide range of particle reinforced metal matrix composites with significant enhancement of thermal performance. (C) 2015 Elsevier Ltd. All rights reserved.
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