KINETICS OF PHASE-CHANGES IN LARGE MOLECULAR CLUSTERS

被引：5

作者：

BARTELL, LS

DIBBLE, TS

机构：

[1] Department of Chemistry, University of Michigan, Ann Arbor, 48109, MI

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1991年 / 20卷 / 1-4期

关键词：

36.40; 61.14.F; 64.60.Q; 82.20.M;

D O I：

10.1007/BF01543986

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A method has been devised to study the kinetics of phase changes in an unfamiliar regime of extreme undercooling and rate of transformation. We show how electron diffraction can monitor the time evolution of phase changes in molecular clusters condensed from the vapor in supersonic flow. Transitions taking place in microseconds are readily followed. Examples include solid state transformations as well as the freezing of liquid clusters. Aspects of the experiment making it possible to observe familiar transitions under highly unusual conditions will be discussed along with some advantages of the new technique.

引用

页码：255 / 257

页数：3