Mg-thermal reduction of TiCl4+CxCl4 solution for producing ultrafine titanium carbide

Lee  DW; Alexandrovskii  S; Kim  BK

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Mg-thermal reduction of TiCl4+CxCl4 solution for producing ultrafine titanium carbide

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Nanosized titanium carbide particles were synthesized by the reaction of liquid magnesium and vaporized TiCl4 + CxCl4 (x = 1, 2) solution. Fine titanium carbide particles with about 50 nm were successfully produced by combining of Ti and C atoms released by chloride reduction of magnesium, and vacuum was then used to remove the residual phases of MgCl2 and excess Mg. With respect to the reaction kinetic, the activation energy for the reactions of TiCl4 + C2O4 and Mg was found to 69 kJ mol(-1), which was about half value against the use of TiCl4 + CCl4, and such higher reactivity of the former contributed to increase the stoichiometry until the level of TiC0.96 and decrease the free carbon content below 0.3 wt.. (C) 2004 Elsevier B.V. All rights reserved.

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《Materials Chemistry and Physics》 |2004年第1期|23-26|共4页
作者
Lee DW; Alexandrovskii S; Kim BK;
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作者单位

Korea Inst Machinery & Mat, Dept Mat Technol, Nano PM Grp, Chang Won, Kyungnam, South Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
carbides; chemical synthesis; nanostructures;

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Mg-thermal reduction of TiCl4+CxCl4 solution for producing ultrafine titanium carbide

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