Surface supercooling and stability of n-alkane films

被引：31

作者：

Maeda, N ^{[1
]}

Yaminsky, VV ^{[1
]}

机构：

[1] Australian Natl Univ, Dept Appl Math, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.84.698

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The surface tension of n-octadecane was studied in the vicinity of the bulk melting point using both the maximum bubble pressure and Wilhelmy plate methods. The bubble surfaces were found to be supercooled below the surface freezing point. The onset of surface freezing is indicated by a sharp drop in surface tension at a constant temperature. This transition is accompanied by an increased film stability resulting iii longer bubble lifetimes at the liquid surface. Variations in bubble lifetime reflect changes in the interfacial mechanical proper ties of the film from liquidlike to solidlike.

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页码：698 / 700

页数：3

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