THE MECHANISM FOR NANOMETER-SIZED TiC SYNTHESIZING BY MECHANICAL & THERMAL ACTIVATION PROCESSING
来源期刊：Acta Metallurgica Sinica2005年第3期
论文作者：T.Sun L.S. Cui X.L. Cui M.Zhu
Key words：TiC; nanometer-sized powder; interface interaction; mechanical activation; molten salt;
Abstract: A novel process for synthesizing nano-ceramics powders, named mechanical & thermal activation processing, is discussed in the present paper. It is a processing based on thermal activation in liquid phase (molten salt) after mechanical activation. The nanometer-sized TiC particles (15-20nm) have been synthesized by the method, and analyzed by X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM) and energy dispersion X-ray (EDX) spectroscopy. An interface interaction between liquid (molten salt) and solid (final product particles) phases plays a dominating role for the control of product particles size. The mechanism for the formation of nanometer-sized TiC particles has been discussed.
T.Sun1，L.S. Cui2，X.L. Cui1，M.Zhu1
(1.College of Mechanical Engineering, South China University of Technology, Guangzhou 510640,China;
2.Department of Materials Science and Engineering, University of Petroleum, Beijing 102200,China)
Abstract:A novel process for synthesizing nano-ceramics powders, named mechanical & thermal activation processing, is discussed in the present paper. It is a processing based on thermal activation in liquid phase (molten salt) after mechanical activation. The nanometer-sized TiC particles (15-20nm) have been synthesized by the method, and analyzed by X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscopy (SEM) and energy dispersion X-ray (EDX) spectroscopy. An interface interaction between liquid (molten salt) and solid (final product particles) phases plays a dominating role for the control of product particles size. The mechanism for the formation of nanometer-sized TiC particles has been discussed.
Key words:TiC; nanometer-sized powder; interface interaction; mechanical activation; molten salt;
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