Journal ArticleDOI
Effects of pressure on the thermal decomposition kinetics, chemical reactivity and phase behavior of RDX
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TLDR
In this article, the effedts of pressure on the thermal decomposition kinetics, chemical reactivity, and phase behavior of RDX have been studied by a combination of measurement techniques in conjunction with a high-pressure diamond anvil cell.About:
This article is published in Combustion and Flame.The article was published on 1991-01-01. It has received 72 citations till now. The article focuses on the topics: Thermal decomposition & Phase (matter).read more
Citations
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High-pressure studies of pharmaceutical compounds and energetic materials
TL;DR: This tutorial review outlines the various methods used to study these materials at high pressure, describes how pressure can be used to explore polymorphism, and provides examples of compounds that have been studied at high Pressure.
Journal ArticleDOI
Decomposition of condensed phase energetic materials: interplay between uni- and bimolecular mechanisms.
David Furman,Ronnie Kosloff,Faina Dubnikova,Sergey V. Zybin,William A. Goddard,Naomi Rom,Barak Hirshberg,Yehuda Zeiri +7 more
TL;DR: This study elucidates the origin of the difference between the activation energies in the gas phase and the condensed phase of TNT and identifies the corresponding universal principle and the different reactivities of nitro-based organic explosives are rationalized as an interplay between uni- and bimolecular processes.
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High Pressure Raman Spectroscopy of Single Crystals of Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)
TL;DR: It is proposed that the alpha-gamma phase transition leads to a rearrangement between the RDX molecules, which in turn significantly changes the intermolecular interaction experienced by the N-O bonds, and can account for the observed increase in the number of modes in the gamma-phase.
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Explosives under pressure - the crystal structure of gamma-RDX as determined by high-pressure X-ray and neutron diffraction
Alistair J. Davidson,Iain D. H. Oswald,D. J. Francis,Alistair R. Lennie,William G. Marshall,David I. A. Millar,Colin R. Pulham,John E. Warren,Adam S. Cumming +8 more
TL;DR: Using a combination of X-ray single crystal and neutron powder diffraction, the crystal structure of the high-pressure γ-form of RDX was determined at 5.2 GPa and showed that the RDX molecules adopt different conformations compared to the conformation found in the ambient-pressure α-form.
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The crystal structure of beta-RDX-an elusive form of an explosive revealed
David I. A. Millar,Iain D. H. Oswald,D. J. Francis,William G. Marshall,Colin R. Pulham,Adam S. Cumming +5 more
TL;DR: The crystal structure of the highly metastable beta- form of RDX shows that the molecules adopt different conformations compared to the alpha-form and that, contrary to previous reports, the beta-form obtained at ambient pressure is not the same form as that obtained at elevated temperatures and pressures.
References
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Journal ArticleDOI
Calibration of the pressure dependence of the R1 ruby fluorescence line to 195 kbar
TL;DR: In this article, the pressure dependence of the R1 ruby fluorescence line has been calibrated at 25°C against the compression of NaCl using the Decker equation of state for NaCl.
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An Optical Fluorescence System for Quantitative Pressure Measurement in the Diamond‐Anvil Cell
TL;DR: In this article, an optical system for rapid routine pressure measurement is described which utilizes a pressure shift in the sharp R-line fluorescence spectrum of ruby or similar materials, which can be employed with suitable modification in any pressure system which has optical access.
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Hydrostatic limits in liquids and solids to 100 kbar
TL;DR: In this article, the authors used line-broadening and line-shift measurements of the sharp R1 ruby fluorescence line to determine the hydrostatic properties of the materials methanol, isopropyl alcohol, water, sodium chloride, silver chloride, and the binary mixtures pentane-isopentane and methanoline-ethanol.
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The crystal structure of cyclotrimethylenetrinitramine
C. S. Choi,E. Prince +1 more