Transient phase-induced nucleation

被引：196

作者：

Sirota, EB ^{[1
]}

Herhold, AB ^{[1
]}

机构：

[1] ExxonMobil Res & Engn Co, Corp Res Sci Lab, Annandale, NJ 08801 USA

来源：

SCIENCE | 1999年 / 283卷 / 5401期

关键词：

D O I：

10.1126/science.283.5401.529

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A transient metastable rotator phase occurring on crystallization of hexadecane into its triclinic phase from the supercooled melt was directly observed with time-resolved synchrotron x-ray scattering. In this system, the limit of supercooling (the crystallization temperature) is determined by the thermodynamic stability of the transient phase with respect to the Liquid. The crystallization kinetics of the homologous series of n-alkanes was measured and explained in terms of a crossover from stability to "long-lived" metastability to transient metastability. This crossover allowed further confirmation of the nature of the transient phase.

引用

页码：529 / 532

页数：4

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