非传统TiC合成研究进展

Development of non-traditional TiC synthetic methods

  • 摘要: 传统上,TiC一直采用碳热还原法进行生产.该法存在温度高,设备要求严格和产品纯度低等不足.为了加深针对上述不足和TiC产品特殊需求而开发的一些非传统的TiC合成方法的了解,文中根据反应机理,将非传统的TiC合成方法按照活泼金属热还原法、化学气相沉积法(CVD)、直接碳化法和电化学还原法等进行了分类和评述.对比发现,电化学还原法合成TiC具有原料成本低、合成温度低、工艺简单和对环境友好等特点,该法必将引起学术界和产业界的关注.

     

    Abstract: TiC has traditionally been produced by the carbon-thermal reduction method, which has some drawbacks, including high temperature, equipment demanding and low-purity products. Some non-traditional synthetic ways are developed to overcome the carbon-thermal reduction deficiencies and meet the market demands. This paper classifies and analyzes these non-traditional TiC synthetic methods according to their reaction mechanisms. These methods include metal-thermal reduction, chemical vapor deposition, direct carbonation and electrochemical reduction. The results indicate that the electrochemical reduction has the advantages of low raw materials cost, low synthetic temperature, simple technology and environment friendliness, which will ensure the attention of academic world and industrial community.

     

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