Spontaneous crystallization of nanocolloids

被引:5
作者
Karpov, S. V. [1 ]
Isaev, I. L.
Shabanov, V. F.
Gavrilyuk, A. P.
Grachev, A. S.
Gerasimov, V. S.
机构
[1] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
关键词
OPAL FILMS; NANOPARTICLES;
D O I
10.1134/S1028335809020025
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The role of forces of the external tangential friction arising during a transverse displacement of the neighboring particles relative each other in the aggregation leading to spontaneous crystallization of nanocolloids is studied. The mathematical models of the 2D and 3D periodic colloidal structures formed from various numbers of nanoparticles under conditions identical to those for silver hydrosol are also presented. The results show that for lower viscosity, the crystallization stops due to the elastic reflection of particles. The smoothing of dislocation boundaries slows down or becomes impossible during the association of individual single-crystalline fragments. An increase in the adsorption layer (AL) thickness slows down the crystallization as particle captures in the potential well become less probable.
引用
收藏
页码:51 / 54
页数:4
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