以铝粉和AlN粉末为原料,按重量比60/40的比例进行混合,加入3wt％NH4F和3wt％碳黑,在8MPa的氮气气氛条件下进行高温自蔓延合成,合成产物为具有良好结晶形态的规则AlN颗粒.采用扫描电子显微镜(SEM)和X射线衍射仪(XRD)研究了加入NH4F和碳黑后合成产物形态和物相的变化情况.研究结果表明同时加入NH4F和碳黑使得燃烧过程出现了后烧现象,即样品可以维持在高温阶段较长的时间,促进了AlN气相的传输,最终使得AlN颗粒以较为规则的外形生长. Aluminum powder and AlN powder as raw materials were mixed in the weight ratio of 60/40, 3wt% of NH4F and 3wt% of carbon black were added and subjected to high-temperature self-propagating synthesis under a nitrogen atmosphere of 8MPa. The synthesized product had a good crystal morphology The results show that the addition of NH4F and carbon black make the combustion process After the phenomenon appeared after burning, that is, the sample can be maintained at high temperature for a long period of time, and promote the AlN gas phase transmission, and finally make AlN particles grow in a more regular shape.