水热条件下氧化物枝蔓晶的形成

Formation of Oxide Dendrite Crystal under Hydrothermal Condition

本文在采用水热盐溶液卸压技术制备氧化物粉体时发现制得的氧化物颗粒之间按一定的规律连生在一起，形成类似于枝蔓晶的生长形态。通过对其连生方式的分析发现，在过饱和度较低的条件下连生也存在各向异性。即晶粒生长速度快的晶面易连生在一起。

In this paper,when the oxide powders were synthesized by hydrothermal salt solution pressure relief,it can be found that the particles are linked together each other at the certain principle,forming the shape like dendrite cyrstal.Through the analysis of linking mode between particles,It can be found that the linking mode between particles is the same as that of the growth unit in the interface,namely,the crystal face which corner of coordination polyhedron appear have bigger growth rate.