化学学报 ›› 1991, Vol. 49 ›› Issue (2): 135-141. 上一篇    下一篇

研究论文

固相反应中扩散动力学方程的新探讨

顾乐民   

  1. 上海建筑材料工业学院材料系
  • 发布日期:1991-02-15

A new approach to the diffusivity-dynamics equation in solid reactions

GU LEMIN   

  • Published:1991-02-15

通过对г~NHCTJINHT方程中把э~c/э~r作为产物层增厚速率的基础作出分析,对由扩散控制的固相反应中扩散浓度与时间的关系作了进一步探讨, 提出产物层增厚速率应建立在Fick第二定律的基础上, 并导出了新的扩散动力学方程。

关键词: 浓度, 动力学方程, 扩散, 时间, 固相反应

The shortcomings that the rate of thickening of the reaction product based on dc/dt in the Ginstling equation are analyzed. The relation of diffusion d. vs. time in diffusion-controlle solid reactions was studied. A new diffusivity-dynamics equation is proposed.a

Key words: CONCENTRATION, KINETICS EQUATIONS, DIFFUSION, TIME, SOLID PHASE REACTION

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