在许多由固相反应生成合金和无机材料的生产过程中,扩散传质控制着反应的过程。但是,对扩散控制固相反应系统的机理和动力学研究还很不成熟。Jander首先把平面扩散抛物线方程用于球体内部的扩散过程,导出了Jander方程,由于平面扩散截面积不变和球体扩 In many solid-state reactions to produce alloys and inorganic materials in the production process, diffusion mass transfer controls the reaction process. However, the mechanism and kinetics of diffusion-controlled solid-phase reaction systems are still immature. Jander first used the plane diffusion parabolic equation for the diffusion process inside the sphere and derived the Jander equation. Since the planar diffusion cross-sectional area is constant and the sphere expansion