Preparation of Si-B-C System Powder Using Silicon, Boron, and Boron Carbide


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Boron carbide composites in Si-B-C System have been widely studied and applied in excellent engineering materials. These materials are usually used at high temperature. Unfortunately, amorphous Si-B-C ceramics have been few reports regarding the properties of Si-B-B4C ceramics. In this study, the preparation of crystallized Si-B-C system compounds using Si, B, and B4C powders was investigated to determine their potentially for applications as high hardness composites. The samples were prepared at 1673 K for 2 hours in Ar atmosphere. The sintered bodies were cut into 5 х 5 х 10 mm blocks and polished with diamond disk for Vickers hardness. The samples were subjected to X-ray diffraction (XRD) analysis for phase evolution using a powder X-ray diffractometer. The fracture surfaces of the specimens were observed using a scanning electron microscope (SEM) included an energy dispersive X-ray fluorescence spectrometer (EDX) system to estimate the microstructures.



Materials Science Forum (Volumes 544-545)

Edited by:

Hyungsun Kim, Junichi Hojo and Soo Wohn Lee




G. C. Hwang et al., "Preparation of Si-B-C System Powder Using Silicon, Boron, and Boron Carbide", Materials Science Forum, Vols. 544-545, pp. 933-936, 2007

Online since:

May 2007




[1] M. Vlasse, G. A. Slack, M. Garbauskas, J. S. Kasper and J. C. Viala, J. Solid State Chem., 63 (1986) 31-45.

DOI: 10.1016/0022-4596(86)90149-0

[2] J. C. Viala and J. Bouix, J. Less-Common Metals, 71 (1980) 195-206.

[3] J. C. Viala, R. Jillel and J. Bouix, J. Less-Common Metals, 71 (1980) 207-218.

[4] J. Matsushita and S. Komarneni, Mater. Res. bull., 36 (2001) 1083-1089.

[5] L. Chen, T. Goto, M. Mukaida, M. Niino and T. Hirai, J. Jpn. Soc. Powder and Powder Metallurgy, 41 (1994) 1299-1303.

[6] S. L. Dole, S. Prochazka and R. H. Doremus, J. Am. Ceram. Soc., 72 (1989) 958-966. a) d) c) e) b) 0. 5 1. 0 1. 5 2. 0 C B Si EDX Spectrum Energy (keV).

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