Abstract
Spark plasma sintering (SPS) was used to fabricate Al/diamond composites. The influence of diamond particle size on the microstructure and thermal conductivity (TC) of composites was investigated by combining experimental results with model prediction. The results show that both composites with 40 µm particles and 70 µm particles exhibit high density and good TC, and the composite with 70 µm particles indicates an excellent TC of 325 W·m−1·K−1. Their TCs lay between the theoretical estimated bounds. In contrast, the composite with 100 µm particles demonstrates low density as well as poor TC due to its high porosity and weak interfacial bonding. Its TC is even considerably less than the lower bound of the predicted value. Using larger diamond particles can further enhance thermal conductive performance only based on the premise that highly dense composites of strong interfacial bonding can be obtained.
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References
Zhang Q. and Sun D., Recent achievements in research for electronic packaging substrate materials, J. Mater. Sci. Technol., 2000, 8: 66.
Ren S.B., He X.B., Qu X.H., and Humail I.S., Effect of Mg and Si in the aluminum on the thermo-mechanical properties of pressureless infiltrated SiCP/Al composites, Compos. Sci. Technol., 2007, 67: 2103.
Zhang L., Qu X.H., Duan B.H., He X.B., Ren S.B., and Qin M.L., Microstructure and thermo-mechanical properties of pressureless infiltrated SiCP/Cu composites, Compos. Sci. Technol., 2008, 68: 2731.
Yamamoto Y., Imai T., Tanabe K., Tsuno T., Kumazawa Y., and Fujimori N., The measurement of thermal properties of diamond, Diamond Relat. Mater., 1997, 6: 1057.
Ekimov E.A., Suetin N.V., Popovich A.F., and Ralchenko V.G., Thermal conductivity of diamond composites sintered under high pressures, Diam. Relat. Mater., 2008, 17: 838.
Beffort O., Khalid F.A., Weber L., Ruch P., Klotz U.E., Meier S., and Kleiner S., Interface formation in infiltrated Al(Si)/diamond composites, Diamond Relat. Mater., 2006, 15: 1250.
Ruch P.W., Beffort O., Kleiner S., Weber L., and Uggowitzer P.J., Selective interfacial bonding in Al(Si)-diamond composites and its effect on thermal conductivity, Compos. Sci. Technol., 2006, 66: 2677.
Khalid F.A., Beffort O., Klotz U.E., Keller B.A., and Gassera P., Microstructure and interfacial characteristics of aluminum-diamond composite materials, Diamond Relat. Mater., 2004, 13: 393.
Chen L.L. Jia C.C., and Wang K.M., Spark plasma sintering of high-toughness ZrO2 materials doped with yttrium, Rare Met., 2008, 27: 479.
Jia C.C., He Q., Meng J., and Guo L.N., Influence of mechanical alloying time on the properties of Fe3Al intermetallics prepared by spark plasma sintering, J. Univ. Sci. Technol.. Beijing, 2007, 14: 331.
Sun L., Lin C.G., Jia C.C., Jia X., and Xian. M., Change in relative density of WC-Co cemented carbides in spark plasma sintering process, Rare Met., 2008, 27: 74.
Hasselman D.P.H. and Lloyd F.J., Effective thermal conductivity of composites with interfacial thermal barrier resistance, J. Compos. Mater., 1987, 21: 508.
Chu K., Jia C.C., Liang X.B., Chen H., Guo H., Yin F.Z., and Qu X.H., Experimental and modeling study of the thermal conductivity of SiCp/Al composites with bimodal size distribution, J. Mater. Sci., 2009, 44: 4370–8.
Chu K., Jia C.C., Liang X.B., Chen H., and Guo H., The thermal conductivity of pressure infiltrated SiCp/Al composites with various size distributions: Experimental study and modeling, J. Mater. Des., 2009, 30: 3497.
Flaquer J., Ríos A., Martín-Meizoso A., Nogales S., and Böhm H., Effect of diamond shapes and associated thermal boundary resistance on thermal conductivity of diamond-based composites, Compos Mater. Sci., 2007, 41: 156.
Chu K., Jia C.C., and Liang X.B., Comment on “Effect of diamond shapes and associated thermal boundary resistance”, Compos. Mater. Sci., 2009, 45: 1142
Chu K., Jia C.C., Liang X.B., Chen H., Gao W.J, and Guo H., Modeling the thermal conductivity of diamond reinforced aluminium matrix composites with inhomogeneous interfacial conductance, J. Mater. Des., 2009, 30: 4311.
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Chu, K., Jia, C., Liang, X. et al. Effect of particle size on the microstructure and thermal conductivity of Al/diamond composites prepared by spark plasma sintering. Rare Metals 28, 646–650 (2009). https://doi.org/10.1007/s12598-009-0123-2
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DOI: https://doi.org/10.1007/s12598-009-0123-2