报导了用二氧化硅碳还原氮化法制取高性能Ｓｉ３Ｎ４粉的研究结果。研究了氮化温度、氮化时间、氮气流量等工艺因素对氮化产物的颜色、颗粒形状、粒度和粒度分布以及相结构的影响；分析了非晶态、ＳｉＯ２、ＳｉＣ产物的形成条件。结果表明：氮化工艺因素对氨化产物的性能有明显的影响，采用１４５０℃氮化温度，氮化时间２ｈ，Ｎ２流量２．５Ｌ／ｍｉｎ的工艺条件，能制得高α相比例，颗粒微细和粒度分布均匀的优质Ｓｉ３Ｎ４粉。 Reported the results of the study on the preparation of high-performance Si3N4 powder by carbon-carbon reduction and nitridation. The effects of nitriding temperature, nitriding time and nitrogen flow rate on the color, particle shape, particle size, particle size distribution and phase structure of nitrided product were studied. The formation conditions of amorphous, SiO2 and SiC products were analyzed. The results show that the nitriding process has a significant effect on the performance of the ammoniated product. Using the conditions of nitriding temperature of 1450 ℃, nitriding time of 2h and N2 flow rate of 2.5L / min, Fine and uniform size distribution of high-quality Si3N4 powder.