摘要
研究以钒酸铵和碳粉为原料,经过混料、研磨、压制成型后放入反应炉中还原氮化制备氮化钒。对还原氮化的过程进行热动力学分析,得到氮化钒形成机制中物料的比表面积和温度、压强等外部条件对反应过程的反应速率及活化能的影响。并建立反应速率常数与温度之间的数学模型。
The ammonium vanadate and carbon powder were used as raw material,through the processes of mixing,grinding,press molding,the vanadium nitride was prepared by reduction and nitridation in the reactor. Thermodynamic analysis was carried out on the reduction of nitriding process. The effect of external conditions,such as specific surface area,temperature,pressure on the reaction rate and activation energy in the process of the reaction was obtained. And the mathematical model between the reaction rate constant and temperature was established.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2016年第5期1-4,共4页
Ordnance Material Science and Engineering
基金
国家自然科学基金专项基金项目(21241007)
湖北省重大科技创新计划(2014ACA042)
关键词
活化能
反应速率
微负压
氮化钒
activation energy
reaction rate
micro negative pressure
vanadium nitride
