摘要
本文研究了有机非线性光学晶体L-酒石酸脲在过饱和溶液中的成核过程。测定了不同温度下L-酒石酸脲的溶解度和成核诱导期,计算了成核特征参数。讨论了不同温度、过饱和度对L-酒石酸脲成核诱导期的影响。研究表明L-酒石酸脲晶体的成核诱导期随着溶液温度和过饱和度的增大而减少。通过经典成核理论计算了L-酒石酸脲的固液表面张力、成核自由能和临界成核半径等系列成核参数。
The nucleation of the organic nonlinear optical crystal, urea L- tartaric acid,＇was studied in supersaturated solution. The solubility and induction period of nucleation in different temperature were measured and the nucleation characteristic parameters were calculated. The effects of super-saturation and temperature on induction period were discussed. It was found that the induction period of urea L- tartaric acid crystal decreased with the raise of temperature and super-saturation. The interfacial tension, energy of formation and critical radius of nuclei of the urea L- tartaric acid crystal were calculated based on classical nucleation theory.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2008年第6期1546-1550,共5页
Journal of Synthetic Crystals
基金
江苏省自然科学基金(No.BK2004123)
关键词
有机非线性光学晶体
L一酒石酸脲
晶体生长
organic nonlinear optical crystal
urea L- tartaric acid crystal
crystal growth
作者简介
胡永红（1968-），江苏省人，教授，博士生导师。E-mail：hyh@njut．edu．cn
