Computer simulation of curved crystal habits: Polymer crystallization under an anisotropic growth condition

被引：9

作者：

Tanzawa, Y ^{[1
]}

Toda, A ^{[1
]}

机构：

[1] KYOTO UNIV,FAC SCI,DEPT PHYS,KYOTO 606,JAPAN

来源：

POLYMER | 1996年 / 37卷 / 09期

关键词：

computer simulation; anisotropic growth condition; curved crystal habit;

D O I：

10.1016/0032-3861(96)83710-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Computer simulation was carried out to study the morphological change in the lateral habit of polyethylene single crystals grown from the melt. Monte Carlo simulation was utilized for modelling the processes of surface nucleation and step propagation on the growth faces of a two-dimensional crystal with hexagonal packing. Anisotropy of growth was introduced in the simulation by choosing different rates for these processes on the {110} and {100} faces. Depending on the ratio of the step propagation velocity to the rate of increasing width of the growth face, the computer simulation produced curved crystals of truncated lozenge or lenticular shape, both of which have been observed experimentally. The change in morphology has been analysed quantitatively. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：1621 / 1627

页数：7

共 19 条

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