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报道了水热法制备氧化亚铜晶粒的实验结果,大部分晶粒呈长柱状,间有长柱状晶粒沿某些特定方向联生而成的晶粒,包括6个线度基本等长的柱状晶粒沿3个相互垂直的方向联生而成的晶粒,锥面在柱体顶端显露.这表明在晶粒的形成过程中,发生了由于某些显露的晶面之间结构相容而使得晶粒取向连生为主要内涵的第2类聚集生长.从氧化亚铜晶体结构出发,选定了其生长基元的基本结构单元,通过各类基元稳定能的计算,确定正方柱状和三轴生长基元为有利生长基元.第1类聚集生长在水热条件下晶粒生长过程普遍存在,但是,并不是所有的晶粒都能在水热条件下发生第2类聚集生长.晶粒是否可发生第2类聚集生长取决于其自身的结构.
The experimental results of preparing cuprous oxide grains by hydrothermal method are reported. Most of the grains are long columnar grains with long columnar grains coexisting in some specific directions, including six lines of equal length Of the columnar grains along the three perpendicular to the direction of the co-occurrence of the crystal, the cone surface exposed at the top of the column.This shows that in the grain formation, the occurrence of some of the crystal structure between the exposed phase Volume and orientation of the crystal orientation of the main connotation of the second type of aggregate growth from the cuprous oxide crystal structure, selected its basic elements of growth units, through the calculation of various types of elementary stability energy, to determine the square Columnar and triaxial growth motifs are favorable growth motifs. The first type of aggregated growth is ubiquitous during grain growth under hydrothermal conditions, however, not all of the grains are capable of Type 2 aggregation under hydrothermal conditions Growth. The second type of aggregated growth of the grain depends on its own structure.