物理化学学报 >> 1988, Vol. 4 >> Issue (05): 539-544.doi: 10.3866/PKU.WHXB19880520

研究简报 上一篇    下一篇

扩散控制的固相反应动力学模型

张长瑞; 杨以文; 张光   

  1. 国防科技大学; 华南工学院
  • 收稿日期:1987-01-14 修回日期:1987-11-13 发布日期:1988-10-15
  • 通讯作者: 张长瑞

KINETIC MODEL FOR SOLID STATE REACTIONS CONTROLLED BY DIFFUSION

Zhang Changrui;
Yang Yiwen; Zhang Guang   

  1. National University of Defence Technology
    South China Instute of Technology
  • Received:1987-01-14 Revised:1987-11-13 Published:1988-10-15
  • Contact: Zhang Changrui

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Abstract: A spherical model for solid state reactions controlled by diffusion has been developed in this paper. Two equations between the conversion ratio and reaction time and temperature were derived from the model. The equations were tested by the solid state reaction of Synthesis of Si_3N_4 from silicon and nitrogen. The results show that the model is applicable for solid state reactions controlled by diffusion.