Investigation of Atomic and Molecular Clusters Formed in Free Jet Expansions via Gas Phase Nucleation.

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Abstract:

The goal of the work outlined here is to determine the structure of atomic and molecular clusters small enough to constitute the starting or critical size for phase transitions from the vapor state i.e., 10-100 moleculescluster. The clusters are nucleated homogeneously from the vapor phase in the free jet expansion of a molecular beam apparatus. Their size and structure are obtained through use of high energy electron diffraction.

Author(s):
Stein, Gilbert D.
Author Organization(s):
NORTHWESTERN UNIV EVANSTON ILL DEPT OF MECHANICAL ENGINEERING AND ASTRONAUTICAL SCIENCES
Descriptive Note:
Final rept. 16 Mar 73-31 Aug 74,
Pagination:
0027

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFCRL-TR-74-0615
Contract/Grant Number(s):
F19628-73-C-0226
Task Number(s):
763514
Project Number(s):
AF-7635
Monitor Series:
TR-74-0615
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*NUCLEATION, *CONDENSATION, *CONDENSATION NUCLEI, MOLECULES, PHASE TRANSFORMATIONS, EXPERIMENTAL DESIGN, ATOMS, VAPOR PHASES, MOLECULAR BEAMS, MOLECULAR STRUCTURE, CARBON DIOXIDE, ELECTRON DIFFRACTION
Field(s)/Group(s):
Atomic and Molecular Physics and Spectroscopy
Keyword(s):
Clusters(Atoms)
Report Date:
1974 Nov 15