Low-Temperature Synthetic Route of Boron Carbide Powders
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Nanocrystalline Boron carbide powder was synthesized by simple sol-gel polycondenzation of resorcinol and formaldehyde in present of boric acid, followed by freeze drying. Pyrolysis and subsequent heat treatment of these cryogels result in boron carbide materials. Characterization by nitrogen adsorption showed that precomposite cryogels and the boron carbide powders were micro and mesoporous materials with high surface areas. Materials have been analyzed by means of X-ray diffraction and electron microscopy investigations. The Rietveld refinement was employed to get the structural information of the synthesized powder.
Keywords:X-ray defraction / Boron carbide / polycondenzation
- Proceedings of the International Conference ModTech, 14th International Conference on Modern Technologies, Quality and Innovation (ModTech 2010), May 20-22, 2010, Slanic-Moldova, Romania