研究了氮气气氛下V₂O₅碳热还原氮化反应的热力学和动力学，并进行了实验验证. 结果表明，反应炉内V₂O₅优先还原，在碳充足的情况下，还原的中间产物依次是V₂O₃, VO, V₂C, VC. 还原氮化通常在N₂气氛下同炉进行，先还原后氮化，温度高于1267℃时，VC比VN更稳定，存在动力学和热力学矛盾. V₂O₅碳热还原反应的控速环节为球形颗粒的三维扩散，氮化反应的控速环节为一级界面反应. 制备了氮含量18%、钒含量78%、碳含量小于2%的钒氮合金.

The thermodynamics and dynamics of the reduction and nitridation of V₂O₅ at N₂ atmosphere were researched with the experimental verification. The results indicated that the prior reaction is V₂O₅ reduction in the furnace, and the semifinished products are sequentially by V₂O₃, VO, V₂C and VC when the carbon is sufficient. Reduction and nitridation are currently carried out in one furnace at N₂ atmosphere. Reduction is prior to nitridation. The stability of VC is better than VN when the temperature is over 1267℃, and heterogeneity exits at thermodynamic and pure dynamic. The restriction of carbon thermal reduction of V₂O₅ is three-dimensional diffusion in spherical particle, while the restriction of nitridation is primary interface reaction. The vanadium nitride of 18% nitrogen and 78% vanadium content is obtained by the experiment, while the carbon is less 2%.