钨粉粉末体氧化动力学研究

Investigation on Oxidizing Kinetics of W Powder

应用流态化－动态悬浮沉降干法分级新工艺制备的分级钨粉，采用薄料层静态法，对粉末体氧化动力学进行了研究。研究表明，钨粉粉粒的氧化过程同样遵从抛物线－直线氧化机理。根据实验结果，建立了以氧化率为目标的数学模型。

Using the thin layer static method, the oxiding kinetics of W powder have been studied. The powder for study is classified by fluidized new technique. Results show that oxidization of W particles also follows the parabola-straight line oxidization mechanisin. On the basis of the exper imental results the mathematical model of oxidization for W powder has been established.