主要进行了碳热还原法制备氮化铝粉末扩大实验研究。研究了不同的铝源、碳源、氮化温度、保温时间、添加剂对合成氮化铝粉末的影响,并采用XRD、SEM、化学物理分析等手段对中试实验制备的氮化铝粉末进行分析。研究结果表明,采用经砂磨处理的铝源B（α-Al₂O₃）和3^#碳源（乙炔黑）为原料,有助于碳热还原反应;采用添加剂C可以降低反应活化能,提高氮化率;造粒工艺有助于扩大实验的碳热还原反应。

Research on the expanding test of aluminum nitride powder prepared by carbothermal reduction was made.Effects of different aluminum sources,carbon sources,nitriding temperature,holding time and additives on the synthesis ofaluminum nitride powder were investigated.The prepared AlN powder was analyzed by means of XRD,SEM and chemical physical analysis.Results showed that the use of sand-treated aluminum source B (α-Al₂O₃) and 3^# carbon sources (acetylene black) as raw materials contributed to the carbothermal reduction reaction;the use of additive C reduced the reaction activation energy and increase nitriding rate;and the granulation process helped to the carbothermal reduction reaction in expanding test.