Studies of phase transitions in PETN at high pressures

We have performed X-ray powder diffraction experiments in the 0–36 GPa region and investigated phase transitions in the high-explosive, pentaerythritol tetranitrate (PETN) using different pressurizing media (nitrogen, no medium (neat)) and different rates of compression. The results provide strong e...

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Bibliographic Details
Published in:	The Journal of physics and chemistry of solids Vol. 67; no. 9; pp. 2159 - 2163
Main Authors:	Pravica, Michael, Lipinska-Kalita, Krystyna, Quine, Zachary, Romano, Edward, Shen, Yongrong, Nicol, Malcolm F., Pravica, Walter J.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Oxford Elsevier Ltd 01-09-2006 Elsevier
Subjects:	Condensed matter: structure, mechanical and thermal properties Equations of state, phase equilibria, and phase transitions Exact sciences and technology Physics Specific phase transitions Explosives Pressure effects Nitric acid esters XRD Phase transformations High pressure
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Summary:	We have performed X-ray powder diffraction experiments in the 0–36 GPa region and investigated phase transitions in the high-explosive, pentaerythritol tetranitrate (PETN) using different pressurizing media (nitrogen, no medium (neat)) and different rates of compression. The results provide strong evidence on the role of sheer stress in the initiation of phase transitions in the material, observed around 7 GPa during compression of the neat material.
ISSN:	0022-3697 1879-2553
DOI:	10.1016/j.jpcs.2006.05.049