A Novel and Simple Route to Synthesis Nanocrystalline Titanium Carbide Via the Reaction of Titanium Dioxide and Different Carbon Source
A Novel and Simple Route to Synthesis Nanocrystalline Titanium Carbide Via the Reaction of Titanium Dioxide and Different Carbon Source
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二氧化钛与不同碳源反应合成纳米晶碳化钛的新颖简单路线
DOI：
10.4236/msa.2011.211215
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Jianhua Ma
中科院分区：
文献类型：
--
作者：
Youjiang Chen;Yongyong Deng;Hong Zhang;Li;Jianhua Ma
本文介绍了一种在熔盐中合成纳米晶陶瓷粉末的新颖而简单的路线。碳化钛（TiC）是通过金属镁粉末与二氧化钛（TiO2）、碳源和熔盐在高压釜中在650℃下反应制备的。本文采用的碳源（草酸和柠檬酸）稳定、低毒、价格低廉。 X射线粉末衍射(XRD)图谱表明产物为立方TiC。扫描电子显微镜 (SEM) 图像显示，样品由平均直径分别为 200 nm 和 100 nm 的颗粒组成。样品的能量色散光谱仪 (EDS) 分析表明产品含有碳和钛元素。该产品还通过热重分析（TGA）进行了研究。在空气中350℃以下具有良好的热稳定性和抗氧化性。
A novel and simple route for synthesizing nanocrystalline ceramic powders in molten salt was introduced in the paper. Titanium carbide (TiC) was prepared via the reaction of metallic magnesium powders with titanium dioxide (TiO2), carbon source and molten salt in an autoclave at 650°C. Carbon source (oxalic acid and citric acid) in this paper was stable, low toxic and cheap. X-ray powder diffraction (XRD) patterns indicated that the products were cubic TiC. Scanning electron microscopy (SEM) images showed that the samples consisted of particles with an average size of 200 nm and 100 nm in diameter, respectively. Energy Dispersive Spectrometer (EDS) analysis of the samples suggested the products contained carbon and titanium elements. The product was also studied by the thermogravimetric analysis (TGA). It had good thermal stability and oxidation resistance below 350°C in air.