【摘要】 介绍了碳热还原法生产氮化硅粉体的机理及产出氮化硅陶瓷的特点,并对其研究方向进行了展望。氮化硅（Si₃N₄）具有高强度、高硬度、耐磨蚀、抗氧化、良好的抗热冲击性等优点被广泛应用。生产氮化硅粉体的方法多种多样,由于近年来生产技术的大幅度提高,以及全球金属矿物价格的大幅度波动,目前采用原料为SiO₂的碳热还原法生产氮化硅陶瓷被广泛关注,大量国内外研究人员对其进行研究。更多还原

【Abstract】 The mechanism of producing silicon nitride powder by carbon-thermal reduction and the characteristics of produced silicon nitride ceramics are introduced, and its research direction is prospected. Silicon nitride（Si₃N₄） is widely used because of its high strength, high hardness, wear resistance, oxidation resistance and good thermal shock resistance. At present, there are various methods for producing Si₃N₄ powder. Due to the significant improvement of production technology in recent years and the large fluctuations in global metal mineral prices, the use of SiO₂ as the raw material to produce silicon nitride ceramics by the carbon-thermal reduction method has been attracted widespread attention. A large number of domestic and foreign researchers have studied it.更多还原