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在负离子配位多面体生长基元模型的基础上深入研究了晶粒的结晶过程．认为成核过程主要包括生长基元的形成和生长基元之间的脱水反应过程，并从成核速度的角度分析了影响晶粒粒度的主要原因．揭示了影响晶粒粒度的主要原因为生长基元的生成能、晶体的晶格能．由此总结出不同结构类型的氧化物粉体晶粒粒度的相对大小．合理地解释了由水热法制得的氧化物粉体的晶粒粒度差别较大的原因以及反应介质、反应温度对晶粒粒度的影响．
The crystallization process of the grains was further studied on the basis of the elementary model of anion coordination polyhedron growth. It is considered that the nucleation process mainly includes the formation of growth elements and the dehydration reaction between growth elements, and the main reason that influences grain size is analyzed from the viewpoint of nucleation rate. It is revealed that the main factors affecting grain size are the formation energy of growth element and the lattice energy of crystal. This summarizes the relative sizes of the grain sizes of oxide powders with different structure types. The reasons for the large difference in grain size of the oxide powders obtained by the hydrothermal method and the influence of the reaction medium and the reaction temperature on the grain size are reasonably explained.