Non-stoichiometric boron carbide synthesized in moderate temperature conditions

• Autorzy: Sun G. , Li Y. W. , Hu Q. K. , Wu Q. H. , Yu D. L.
• Języki publikacji: EN

Abstrakty

EN

Non-stoichiometric boron carbide was successfully synthesized through a chemical synthetic route by using tribromide and carbon tetrachloride as reactants and metal sodium as co-reductant at 700 °C. The synthesized sample was characterized by X-ray powder diffraction, transmission selected area electron diffraction, electronic energy loss spectra (EELS) and scanning electron microscopy. The results of the analysis revealed that the synthesized boron carbide crystals have rhombohedral structure and equiaxial morphology. Results of the EELS analysis indicate that the compositions of the synthesized boron carbide are not uniform, the carbon content can range from 9 at. % to 11 at. %.

Słowa kluczowe

EN

non-stoichiometric boron carbide; chemical synthesis; X-ray diffraction; electron energy loss; spectroscopy

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2009
• Tom: Vol. 27, No. 4/1
• Strony: 1033--1039
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Sun G.

autor

Li Y. W.

autor

Hu Q. K.

autor

Wu Q. H.

autor

Yu D. L.

• Institue of Materials Science and Engineering Henan Polytechnic University Jiaozuo 454000, China

Bibliografia

• [1] WOOD C., EMIN D., Phys. Rev. B., 29 (1984), 4582.
• [2] BOUGOIN M., THEVENOT F., J. Mater. Sci., 22 (1987), 109.
• [3] SPOHN M.T., Am. Ceram. Soc. Bull., 72 (1993), 88.
• [4] SCHWETZ K.A., SIGL L.S., PFAU L., J. Solid State Chem., 133 (1997), 68.
• [5] THEVENOT F., J. Eur. Ceram. Soc., 6 (1990), 205.
• [6] BOUCHACOURT M., THEVENOT F., J. Less-Common Met.,82 (1981), 219.Non-stoichiometric boron carbide synthesized in moderate temperature conditions 1039
• [7] CONDE O., SILVESTRE A.J., OLIVERIRA J.C., Surf. Coat. Technol., 125 (2000), 141.
• [8] THEVENOT F., [In:] Advanced Ceramics, Key Engineering Materials, Vols. 56, 57, C. Ganguly, S.K Roy, P.R. Roy (Eds.), TransTech, Zurich, 1991, 59.
• [9] KNUDSEN A.K., [In:] Ceramic Powder Science, Advances in Ceramics, Vol. 21, G.L. Messing,K.S. Mazdiyasni, J.W. Mccauley, R.A. Haber (Eds.), Amer. Ceram. Soc., Westerville, OH, 1987, 237.
• [10] SINHA A., MAHATA T., SHARMA B.P., J. Nucl. Mater., 301 (2002), 165.
• [11] SCOTT J.J., US Pat. No.3161471, 1964.
• [12] XIE Y., QIAN Y.T., WANG W.Z., ZHANG S.Y., ZHANG Y.H., Science, 272 (1996), 1417.
• [13] FU Q., CAO C.B., ZHU H.S., Chem. Phys. Lett., 314 (1999), 223.
• [14] MONDAL S., BANTHIA A.K., J. Eur. Ceram. Soc., 25 (2005), 287.
• [15] SHI L., GU Y.L., CHEN L.Y., QIAN Y.T., YANG Z.H., MA J.H., Solid State Commun., 128 (2003), 5.