ULTRASONIC INVESTIGATION OF THE PARTICLE-SIZE DEPENDENCE OF CRYSTALLIZATION IN N-HEXADECANE-IN-WATER EMULSIONS

被引：64

作者：

DICKINSON, E ^{[1
]}

MCCLEMENTS, DJ ^{[1
]}

POVEY, MJW ^{[1
]}

机构：

[1] UNIV LEEDS,PROCTER DEPT FOOD SCI,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1991年 / 142卷 / 01期

关键词：

D O I：

10.1016/0021-9797(91)90037-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultrasonics has been used to monitor solid-liquid phase transitions in 20 vol% n-hexadecane-in-water emulsions. The velocity and attenuation coefficients of ultrasound at 1.2 MHz were measured as a function of temperature (0-30°C) and time (at 3°C) for two emulsions with the same composition but different mean droplet diameters (0.36 and 3.3 μm). The degree of supercooling (≈14°C) and the crystallization rate at 3°C were found to depend on the droplet size in a manner consistent with homogeneous nucleation in the emulsions. © 1991.

引用

页码：103 / 110

页数：8

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