如从扩散的现象上看，扩散可分为三类：晶内扩散（Bulk diffusion）、晶界扩散（Grain-boundary diffusion）和通过扩散而形成的中间层，会使结合部分的物理特性和化学特性发生变化，尤其是机械特性和耐腐蚀性等变化更大。
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grain boundary diffusion [晶体] 晶界扩散
grain boundary diffusion coefficients 晶界扩散系数
grain boundary diffusion in metals 金属中晶界扩散
The main mechanism of superplastic deformation of the two alloys is grain boundary sliding and grain rotation accommodated by dynamic recrystallization, dislocation motion, grain boundary diffusion, liquid phase, filament and cavity.
两种合金超塑形变的主要机制是由动态再结晶、位错运动、晶界扩散、液相、细丝和空洞等协调的晶界滑移和晶粒转动。
参考来源 - Al·2,447,543篇论文数据，部分数据来源于NoteExpress
Diffusion of oxygen in the bonding coating and substrate is mainly grain-boundary diffusion. Grain-boundary diffusion coefficient is far greater than intragrain diffusion.
氧在粘结底层和基体中的扩散是以晶界扩散为主，晶界扩散系数远远大于晶内的扩散系数。
Grain sliding controlled by grain boundary diffusion is the main mechanism for low temperature superplastic behavior.
晶界扩散控制晶界滑动是低温超塑行为的主要机理。
Grain boundary diffusion plays an important role in the whole sintering course.
晶界扩散在烧结过程中始终起着非常重要的作用。
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