Time-resolved absorption spectroscopy in shocked PETN single crystals

Gruzdkov, Y. A.; Gupta, Y. M.; Dick, J. J.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p929
Academic Journal
Extinction spectra of PETN and photodiode transmission records, with 50 and 0.5 ns resolution respectively, were obtained for shock compression along the [110] and [100] directions. Light extinction was found to be due to absorption; the contribution of scattering was measured to be below 0.001%. Results for final stresses up to 10 GPa (stepwise loading) and initial stresses up to 5 GPa are presented. Broad band absorption in the visible appeared in PETN single crystals shocked to as low as 1 GPa. Absorption changes were measured as a function of time, stress, and crystal orientation. The process responsible for absorption occurred on a time scale faster than 0.5 ns. Work is in progress to identify the origin of the absorption.


Related Articles

  • Shock response of pentaerythritol tetranitrate single crystals. Dick, J. J.; Mulford, R. N.; Spencer, W. J.; Pettit, D. R.; Garcia, E.; Shaw, D. C. // Journal of Applied Physics;10/1/1991, Vol. 70 Issue 7, p3572 

    Studies the shock response of single crystals of the explosive pentaerythritol tetranitrate. Measurement of the shock Hugoniot and shock initiation sensitivities; Analysis of the steric hindrance occurring during edge dislocation motion in the shear flow associated with shock-induced uniaxial...

  • Anomalous shock initiation of detonation in pentaerythritol tetranitrate crystals. Dick, J.J. // Journal of Applied Physics;1/15/1997, Vol. 81 Issue 2, p601 

    Investigates the anomalous, low-stress, shock initiation of detonation in pentaerythritol tetranitrate single crystals. Elastic and plastic Hugoniots; Shocks with reactive flows; Two-wave structures and luminescent emission; Luminescent versus thermal emission; Luminescent emission at low...

  • Anisotropic material model and wave propagation simulations for shocked pentaerythritol tetranitrate single crystals. Winey, J. M.; Gupta, Y. M. // Journal of Applied Physics;Jun2010, Vol. 107 Issue 10, p103505 

    An anisotropic continuum material model was developed to describe the thermomechanical response of unreacted pentaerythritol tetranitrate (PETN) single crystals to shock wave loading. Using this model, which incorporates nonlinear elasticity and crystal plasticity in a thermodynamically...

  • Pentaerythritol.  // Chemical Market Reporter;12/29/97, Vol. 252 Issue 26, p29 

    Presents a chemical profile for pentaetythritol. Includes producer; Demand; Uses; Strengths and weaknesses.

  • Deflagration-to-detonation transition in granular pentaerythritol tetranitrate. Luebcke, P. E.; Dickson, P. M.; Field, J. E. // Journal of Applied Physics;4/1/1996, Vol. 79 Issue 7, p3499 

    Presents a study which examined the deflagration-detonation transition process in pressed granular columns of the explosive pentaerythritol tetranitrate. Review of related literature; Description of the experimental setup; Results.

  • The initiation of fine grain pentaerythritol tetranitrate by laser-driven flyer plates. Watson, S.; Gifford, M.J. // Journal of Applied Physics;7/1/2000, Vol. 88 Issue 1, p65 

    Reports that charges of pentaerythritol tetranitrate (PETN) were impacted by laser-driven flyer plates launched from substrate backed aluminum films. Aluminum target films; Streak photography; PETN initiation.

  • Anisotropic shock sensitivity and detonation temperature of pentaerythritol tetranitrate single... Yoo, C.S.; Holmes, N.C. // Journal of Applied Physics;7/1/2000, Vol. 88 Issue 1, p70 

    Reports that shock temperature of pentaerythritol tetranitrate (PETN) single crystals have been measured with the use of a nanosecond time-resolved spectropyrometric system. Dependence of the shock sensitivity of PETN on the crystal orientation; Detonation temperature of PETN.

  • Observations on Type II Deflagration-to-Detonation Transitions. Gifford, M. J.; Proud, W. G.; Field, J. E. // AIP Conference Proceedings;2002, Vol. 620 Issue 1, p878 

    Type II DDT has been observed in low density charges of ultrafine PETN and RDX. The compressive burning regime that mediates the final stages of type I DDT has been shown to be absent in this mechanism. Convective burning controls the propagation of reaction throughout the column and detonation...

  • Numerical Simulation on Laser Initiation of Thin Explosive. Kubota, Shiro; Nagayama, Kunihito; Shimada, Hideki; Matsui, Kikuo // AIP Conference Proceedings;2002, Vol. 620 Issue 1, p468 

    The processes of the laser initiation of pentaerythritol tetranitrate (PETN: density 1.0g/cc) are calculated using one-dimensional hydrodynamic code to study the effects of the initiation methods on the initiation process. The simplified assumptions for the initial condition are used to model...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics