Accession Number:

ADA209080

Title:

The Aggregated State of Matter: Elucidating Transitions from the Gas to the Condensed Phase and the Formation of Aerocolloids

Descriptive Note:

Final rept. 15 Aug 1985-14 Feb 1989

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1989-04-21

Pagination or Media Count:

39.0

Abstract:

Understanding the behavior of matter in a highly dispersed state whose properties are influenced by the finite dimensions of the system--aerosols or aerocolloidal media in the gas phase, fine particles, clusters or thin films at the surface, and colloids dispersed in liquids--is of considerable fundamental scientific interest, and at the same time bears on a number of applied areas of technological importance. From a scientific point of view, the work addresses a number of challenging problems with the prospect of advancing knowledge in the field of phase transformations, condensed matter and surfaces, and aerosol science. In terms of application to programs of interest to the U.S. Army, the research bears on problems of interest in the field of detection, obscuration by both natural and intentional methods of particle generation, the dispersal of agents, mechanisms of reactions that are involved in combustion and fast reactions in energetic materials, the formation and growth of small clusters and their optical properties that are of value in the area of propulsion and missile signatures, as well as reactions within and on small particles that bear on the areas of decontamination and even the dispersal of agents. Research was undertaken on a number of major projects including studies of the formation and growth of clusters, photodissociation and energy transfer, and investigations to deduce the thermochemistry of clusters. Keyword Nucleation.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE