Authors: Fan, Bingbing; Liu, Ruiyu; Chen, Huimin; Wang, Hailong; Chen, Deliang; Zhang, Rui

Source: Journal of Computational and Theoretical Nanoscience, Volume 5, Number 8, August 2008 , pp. 1788-1791(4)

Publisher: American Scientific Publishers

Abstract:

SiC/Cu composites were prepared using a heterogeneous coating method and conventional sintering. The sintering temperature was 850 °C, 900 °C, 950 °C, 1000 °C, 1050 °C for 30 min, respectively. A kinetic Monte Carlo method was carried out to simulate the growth process of Cu crystallites coating on the SiC particles. The XRD, SEM techniques were performed to characterize the samples. It was found that a core-shell structure was constructed in the coated SiC/Cu composites particles. The simulation results indicated that Cu crystallites firstly precipitated on the surfaces of SiC particles, and then grew to form nano crystallites. The spheroid grain growth phenomena appeared during the sintering of SiC/Cu composites. A "spheroid-bridge-spheroid" (SBS) model was proposed for the densification process.

Keywords: SIC/CU; COATING; GRAIN GROWTH; "SPHEROID-BRIDGE-SPHEROID" GROWTH

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jctn.2008.875

Publication date: 2008-08-01

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• Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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