碳化硼的研究进展

Research Progress on Boron Carbide

碳化硼是高性能陶瓷材料中的一种重要原料,包含诸多的优良性能,除了高硬度、低密度等性能外,它还具备高化学稳定性和中子吸收截面及热电性能等特性,在国防军事设备、功能陶瓷、热电元件等诸多领域具有十分广泛的应用。本文重点介绍了碳化硼的相关性质、研究进展和应用现状。详细地介绍了碳化硼的制备方法,如电弧炉碳热还原法、自蔓延高温法、化学气相沉积法、溶胶-凝胶法等方法,并分析了它们的优缺点。

Boron carbide is a kind of important raw materials of high performanceceramic material,including many excellent performance. In addition to highhardness and low density properties, it also has high chemical stability andneutron absorption cross section and thermoelectric properties,which are widely used in national defense and military equipment,functional ceramics and thermoelectric element fields. The current research progress and application of relevant properties boron carbide were introduced. The preparation methods of boron carbide,such as carbon arc furnace reduction method,self- propagating high temperature method,chemical vapor deposition,sol- gel method,were mainly introduced,and their advantages and disadvantages were analyzed.