Results 41 to 50 of about 2,730 (215)

A direction sensitive detonation model for granular to continuum scale for shock initiation of pentaerythritol tetranitrate single crystal in multi-dimensions

open access: yesAIP Advances, 2015
Experiments have shown that the shock sensitivity of a single crystal pentaerythritol tetranitrate (PETN) has a strong dependence on the crystal orientation. The ignition and growth (I & G) model has been widely used in studies of the shock initiation of
Ki-Hong Kim, Jack J. Yoh
doaj   +1 more source

Iron and Copper Doped Zinc Oxide Nanopowders as a Sensitizer of Industrial Energetic Materials to Visible Laser Radiation

open access: yesNanomaterials, 2022
The development of methods ensuring reliable control over explosive chemical reactions is a critical task for the safe and efficient application of energetic materials. Triggering the explosion by laser radiation is one of the promising methods.
Anton S. Zverev   +6 more
doaj   +1 more source

Rapid fragmentation contributing to the low heat resistance of energetic materials

open access: yesFirePhysChem, 2021
Heat resistance is a basic and crucial characteristic of energetic materials (EMs), and always accounted in development and application. Compared with the clear origin of the high heat resistance of EMs, the mechanism for the low heat resistance remains ...
Fanfan Wang   +4 more
doaj   +1 more source

Expression of a Drosophila glutathione transferase in Arabidopsis confers ability to detoxify the environmental pollutant, and explosive, 2,4,6-trinitrotoluene [PDF]

open access: yes, 2017
The explosive 2,4,6-trinitrotoluene (TNT) is a significant, global environmental pollutant that is both toxic and recalcitrant to degradation. Given the sheer scale and inaccessible nature of contaminated areas, phytoremediation may be a viable clean-up ...
Bruce, Neil Charles   +6 more
core   +1 more source

Supramolecular Gels as Active Tools for Reaction Engineering

open access: yesAngewandte Chemie, Volume 137, Issue 24, June 10, 2025.
The unique combination of environments within gels, self‐assembled from low‐molecular‐weight gelators, offers the ability to control reactivity in new ways, achieving unique reaction outcomes, leading to the emerging concept of supramolecular gels as nanoreactors. Smart chemical engineering methods enable the use of such gels to fabricate materials and
David K. Smith
wiley   +2 more sources

Application of Receiver Operating Characteristic (ROC) Curves for Explosives Detection Using Different Sampling and Detection Techniques [PDF]

open access: yes, 2013
Reported for the first time are receiver operating characteristic (ROC) curves constructed to describe the performance of a sorbent-coated disk, planar solid phase microextraction (PSPME) unit for non-contact sampling of a variety of volatiles. The PSPME
Almirall, Jose   +3 more
core   +2 more sources

Characteristics of a New Plastic Explosive Named EPX-1

open access: yesJournal of Chemistry, 2015
EPX-1 is a new plastic explosive (in the research stage) which has been prepared for military and civilian applications. EPX-1 explosive contains pentaerythritol tetranitrate (PETN) with different particle size as explosive filler bonded by nonenergetic ...
Ahmed Elbeih
doaj   +1 more source

Explanation of the colossal detonation sensitivity of silicon pentaerythritol tetranitrate (Si-PETN) explosive [PDF]

open access: yes, 2009
DFT calculations have identified the novel rearrangement shown here for decomposition of the Si derivative of the PETN explosive [pentaerythritol tetranitrate (PETN), C(CH_2ONO_2)_4] that explains the very dramatic increase in sensitivity observed ...
Dasgupta, Siddharth   +4 more
core   +1 more source

Characterization of Ultrafast Decomposition Dynamics in Nitrate Esters

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Ignition of energetic materials initiates chemical reactions on atomic length scales within femtoseconds, making these reactions difficult to investigate experimentally. The technique of femtosecond time‐resolved mass spectrometry (FTRMS) can capture molecular rearrangement and bond‐breaking events in isolated molecules with sub‐50 femtosecond
Madison K. Minvielle   +3 more
wiley   +1 more source

Reactive Molecular Dynamics Simulations of Shock Through a Single Crystal of Pentaerythritol Tetranitrate [PDF]

open access: yes, 2009
Large-scale molecular dynamics simulations and the reactive force field ReaxFF were used to study shock-induced initiation in crystalline pentaerythritol tetranitrate (PETN). In the calculations, a PETN single crystal was impacted against a wall, driving
Budzien, Joanne   +2 more
core  

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