Actions for Ultrafast spectroscopic investigation of shock compressed glycidyl azide polymer and nitrocellulose films [electronic resource].

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Ultrafast spectroscopic investigation of shock compressed glycidyl azide polymer and nitrocellulose films [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2001.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
5 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
As a first experiment to observe the initial chemical reactions induced by sub-picosecond laser driven shocks in energetic materials, we have investigated thin films of glycidyl azide polymer (GAP) and nitrocellulose (NC). The GAP and NC films were spin coated onto thin film metal layers that had been vapor coated onlo transparent substrates. Sub-picosecond laser pulses were used to launch planar shock waves thro,ugh the metal layer and into the GAP and NC films. Time-resolved displacement measurements of both GAP and NC films suggest that shock-induced chemical reaction may be occurring. While the GAP film velocity falls as expected between that of the A1 free surface and the particle velocity (using the free surface approximation), the displacement measurements in NC films yield velocities lower than the particle velocity. While data modeling discounting reaction has been unsuccessful, WIR microscopy confirms the presence of unreacted GAP and NC in the shocked regions of the films.
Report Numbers
E 1.99:la-ur-01-3382
la-ur-01-3382
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Note
Published through SciTech Connect.
01/01/2001.
"la-ur-01-3382"
"Submitted to: Conference Proceedings from Shock Compression in Condensed Matter COnference in Atlanta, GA., June 2001.".
Reho, J. H.; Moore, David S.; Funk, D. J.; Fisher, G. L.; Rabie, R. L.
View MARC record | catkey: 14450057