钛和沥青机械合金化合成纳米级碳化钛

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钛和沥青机械合金化合成纳米级碳化钛

李渤^a; 崔立山^b; 郑雁军^b; 徐春明^a

^a State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China ^b Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-28 发布日期:2007-02-28
通讯作者: 李渤

Synthesis of TiC powder by mechanical alloying of titanium and asphalt

LI Bo^a; CUI Lishan^b; ZHENG Yanjun^b; XU Chunming^a

^a State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China ^b Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China

Received:1900-01-01 Revised:1900-01-01 Online:2007-02-28 Published:2007-02-28
Contact: LI Bo

摘要/Abstract

摘要： TiC powder was synthesized by mechanical alloying of titanium and asphalt in this paper. Deoiled asphalt as a carbon source not only provided element C in the fabrication of TiC but also cracked itself by the mechanical alloying process. The results of X-ray diffraction demonstrated the synthesis of cubic TiC. Gas phase chromatography showed that the discharged gas was composed of low molecular weight hydrocarbons, including H2, CH4 and C2H6. The formation mechanism of titanium carbide by mechanical alloying, and the thermodynamic and kinetics were discussed. These results showed that mechanical alloying is a promising method to prepare TiC and to crack asphalt with some light fraction byproducts.

关键词: asphalt;titanium carbide;mechanical alloying

Abstract: TiC powder was synthesized by mechanical alloying of titanium and asphalt in this paper. Deoiled asphalt as a carbon source not only provided element C in the fabrication of TiC but also cracked itself by the mechanical alloying process. The results of X-ray diffraction demonstrated the synthesis of cubic TiC. Gas phase chromatography showed that the discharged gas was composed of low molecular weight hydrocarbons, including H2, CH4 and C2H6. The formation mechanism of titanium carbide by mechanical alloying, and the thermodynamic and kinetics were discussed. These results showed that mechanical alloying is a promising method to prepare TiC and to crack asphalt with some light fraction byproducts.

Key words: asphalt, titanium carbide, mechanical alloying

李渤,崔立山, 郑雁军, 徐春明. 钛和沥青机械合金化合成纳米级碳化钛[J]. , DOI: .

LIBo, CUILishan, ZHENGYanjun, XUChunming. Synthesis of TiC powder by mechanical alloying of titanium and asphalt[J]. , DOI: .

参考文献

1    Liang, W.J., Petroleum Chemistry, Petroleum University Press, Dongying (1995). (in Chinese)
2    Zhao, S.Q., Xu, Z.M, Wang, R.A., “Production of de-asphalted oil and fine asphalt particles by supercritical extraction”, Chin. J. Chem. Eng., 11(6), 691—695(2003).
3    Xu, C.M., Keng, C., Hu Y.X., Wang R.A., Lin S.X., “Characterization of bitumen pitch”, Chin. J. Chem. Eng., 4(4), 359—364(1996).
4    Benjamin, J.S., “ Dispersion-strengthened superalloys by mechanical alloying”, Metall. Trans., 1(10), 2943—2951(1970).
5    Benjamin, J.S., Volin, T.E., “The mechanism of me-chanical alloying”, Metall. Trans., 5(8), 1929(1974).
6    Suryanarayana, C., “Mechanical alloying and milling”, Prog. Mater. Sci., 46, 1—184(2001).
7    Koch, C.C., “Materials synthesis by mechanical alloy-ing”, Annu. Rev. Mater. Sci., 19, 121—143(1989).
8    Matteazzi, P., Le Caer, G., “Room-temperature mech-anosynthesis of carbides by grinding of elemental pow-ders”, J. Am. Ceram. Soc., 74(6), 1382—1390(1991).
9    Ye, L.L., Quan, M.X., “Synthesis of nanocrystalline TiC powders by mechanical alloying”, Nanostruct. Mater., 5(1), 25—31(1995). (in Chinese)
10    Cui, X.L., Wang, Y.H., Wang, L., Cui, L.S., Qi, M., “Synthesis of nanometer-sized TiC and SiC from petro-leum coke by reactive milling”, Pet. Sci. Technol., 19(7/8), 971—978(2001). (in Chinese)
11    Keskinen, J., Pogany, A., Rubin, J., Ruuskanen, P., “Car-bide and hydride formation during mechanical alloying of titanium and aluminium with hexane”, Mate. Sci. Eng. A, 196, 205—211(1995).
12    Liu, Z.G., Tsuchiya, K., Umemoto, M., “Mechanical milling of fullerene with carbide forming elements”, J. Mater. Sci., 37(6), 1229—1235(2002).
13    Liu, Z. G., Guo, J. T., Ye, L. L., Li, G. S., Hu, Z. Q., “Formation mechanism of TiC by mechanical alloying”, Appl. Phys. Lett., 65(21), 2666—2668(1994).
14    Sherif El-Eskandarany, M., Konno, T.J., Sumiyama, K., Suzuki, K., “Morphological and structural studies of mechanically alloyed Ti44C56 powders”, Mater. Sci. Eng. A, 217/218, 265—268(1996).