掺杂NaCl水溶液结晶形貌的分形研究  

The Fractal Study of Crystallization in Solution

作　　者：李淑红[1] 欧建文[2] 

机构地区：[1]天津工业大学,天津300387 [2]云南师范大学,云南昆明650500

出　　处：《大学物理实验》2014年第3期11-14,共4页Physical Experiment of College

摘　　要：水溶液结晶是研究分形形貌的重要实验之一。本文通过改变溶液浓度,溶质组分和结晶温度等宏观实验参数,用分形维数的方法研究了这些参数对结晶形貌的影响。指出在低浓度下的非平衡态中溶液结晶形貌具有分形结构;不同晶体的生长作用力相互竞争,混乱度最大的情况下形成的分形结构最凸出,生长作用力是影响晶体形貌的主要因素;同时,分子热运动也是影响结晶形貌的因素之一。The aqueous solution crystal growing is one of the important experimental to study fractal morphology. In this paper, we use fractal dimension to study the macroscopic experimental parameters on crystal morphology,which those parameters e. g. concentration of the solution, solute composition and crystallization temperature is changed. Point that, the crystal morphology with fractal structure in low concentration solution of the non-equilibrium systems;different growth force competing whit each other, the fractal structure most conspicuous in the confusion degree largest case, so the growth forces are the main factors affecting the crystal morphology. At the same time, the thermal motion of molecules also affects the crystal morphology.

关 键 词：结晶 分形 分形维数 

分 类 号：O781[理学—晶体学]