【摘要】 碳化硅（SiC）材料因具有优异的物理化学性能，已被广泛应用于航空航天、工程陶瓷和半导体等领域。目前，SiC粉体的合成方法众多，其中碳热还原法是工业生产SiC粉体的主要方法，但在生产过程中，SiC粉体的颗粒度和杂质含量均会影响最终产物的各项性能。因此，如何对SiC粉体进行细化和纯化处理成为制备高性能SiC材料需要探索的问题。本文首先介绍了SiC粉体合成技术的种类、原理和特点；然后，详细阐述了近年来SiC粉体细化技术的研究进展，并对SiC粉体中无定形碳和金属及金属氧化物的纯化技术进行重点介绍；最后分析了目前制备SiC粉体需要解决的问题，并对其发展前景进行展望。更多还原

【Abstract】 Silicon carbide(SiC) material is widely used in aerospace, engineering ceramics and semiconductor fields for its excellent physical and chemical properties. At present, there are many methods for the synthesis of SiC powder, among which the carbothermal reduction is the main method for industrial production of SiC powder but during the production process, the particle size and impurity content of SiC powder would affect properties of the final product.Therefore, how to refine and purify SiC powder is becoming the issue that often needs to be explored for preparing the high-performance SiC materials. Firstly, the category, principle and characteristics of SiC powder synthesis technology are introduced; then the research progress of SiC powder refinement technology in recent years is elaborated, and the purification technology for amorphous carbon and metals & metal oxides in the SiC powder are specifically emphasized;finally, the problems that need to be solved for preparing SiC powder at present is analyzed along with an outlook for its development prospect.更多还原