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ELECTRON DIFFRACTION STUDIES OF THE KINETICS OF PHASE CHANGES IN MOLECULAR CLUSTERS.

THEODORE SIMON DIBBLE

出版	University of MICHIGAN, 1992
URL	http://books.google.com.hk/books?id=uVAeAQAAMAAJ&hl=&source=gbs_api

註釋

A method for monitoring the time evolution of freezing and of solid-state transformations is developed. Large molecular clusters, formed in a supersonic nozzle expansion, are probed in flight outside the nozzle by an electron beam. The measured rate of transition corresponds to the rate of nucleation. Nucleation must be homogeneous, because clusters in the supersonic jet are isolated from catalysts and from each other. Because clusters are small ($\sim$100 A) they cannot transform during the $\sim$200