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451 Newest Publications in propellants, explosives, pyrotechnics

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Assessment of Stability of Propellants and Safe Lifetimes

10-Jun-2015 | Wim P. C. de Klerk, Propellants, Explosives, Pyrotechnics, 2015

Abstract The surveillance of gun propellants is basically performed either by an investigation into the thermal behavior of the propellant or by the determination of its remaining effective stabilizer content. Over the years it is shown that the surveillance of NC based gun propellants is ...

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Synthesis and Characterization of Poly(3‐azidomethyl‐3‐methyl oxetane) by the Azidation of Poly(3‐mesyloxymethyl‐3‐methyl oxetane)

09-Jun-2015 | Gang Wang, Zhen Ge, Yunjun Luo, Propellants, Explosives, Pyrotechnics, 2015

Abstract Poly(3‐azidomethyl‐3‐methyl oxetane) (PAMMO) was prepared by the azidation reaction of poly(3‐mesyloxymethyl‐3‐methyl oxetane) (PMMMO), which was synthesized by cationic ring‐opening polymerization of MMMO for the first time. Two azidation reaction methods of PMMMO were considered to ...

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Volatile Emissions of Ammonium Nitrate under Flowing Conditions

09-Jun-2015 | Frank Lucus Steinkamp, Braden Giordano, Greg Collins, Susan Rose‐Pehrsson, Propellants, Explosives, Pyrotechnics, 2015

Abstract Ammonium nitrate (AN) is an ionic solid commonly used as a fertilizer and in commercial blasting applications. Frequently, AN is mixed with a fuel and used in improvised explosives devices (IEDs). To characterize the low‐volatility components emanating from AN, a sample of AN was ...

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Modeling the Pressure Generation in Aluminum‐Based Thermites

09-Jun-2015 | Vincent Baijot, Ludovic Glavier, Jean‐Marie Ducéré, Mehdi Djafari Rouhani, Carole Rossi, Alain Estève, Propellants, Explosives, Pyrotechnics, 2015

Abstract The paper proposes a new theoretical model based on local thermodynamic equilibrium enabling the prediction of gas generation during the reaction of aluminum‐based thermites. We demonstrate that the model has the capability to predict the total pressure and the partial pressures of ...

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An ab initio Based Structure Property Relationship for Prediction of Ignition Delay of Hypergolic Ionic Liquids

09-Jun-2015 | David A. Newsome, Ghanshyam L. Vaghjiani, Debasis Sengupta, Propellants, Explosives, Pyrotechnics, 2015

Abstract Currently, monomethyl hydrazine is the most widely used hypergolic rocket fuel. However, due to its high vapor toxicity, there is a need to develop low‐toxicity hypergolic fuels. Ionic liquids are one such potential category of fuels, since they are consistently characterized by ...

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Explosive Performance Properties of Erythritol Tetranitrate (ETN)

05-Jun-2015 | Virginia W. Manner, Daniel N. Preston, Bryce C. Tappan, V. Eric Sanders, Geoff W. Brown, Ernie Hartline, Brian Jensen, Propellants, Explosives, Pyrotechnics, 2015

Abstract Erythritol tetranitrate (ETN) is a melt‐castable explosive with impressive performance, similar to the well‐known related nitrate ester, pentaerythritol tetranitrate (PETN). Though ETN has been known since 1849, its properties have not been thoroughly investigated. We report here the ...

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Laser Ignition of Various Pyrotechnic Mixtures‐ an Experimental Study

05-Jun-2015 | Jonathan Sivan, Yehuda Haas, Propellants, Explosives, Pyrotechnics, 2015

Abstract Ignition of several pyrotechnic mixtures by diode‐laser was studied experimentally using a novel combustion chamber. The ignition delay times dependence on laser intensity could be fit by the expression tign=aI−n for all compositions, with I being the laser intensity at target and ...

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Laboratory‐Scale Method for Estimating Explosive Performance from Laser‐Induced Shock Waves

20-May-2015 | Jennifer L. Gottfried, Propellants, Explosives, Pyrotechnics, 2015

Abstract A new laboratory‐scale method for predicting explosive performance (e.g., detonation velocity and pressure) based on milligram quantities of material is demonstrated. This technique is based on schlieren imaging of the shock wave generated in air by the formation of a laser‐induced ...

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Preparation and Performance of Nano HMX/TNT Cocrystals

20-May-2015 | Hequn Li, Chongwei An, Wenjian Guo, Xiaoheng Geng, Jingyu Wang, Wenzheng Xu, Propellants, Explosives, Pyrotechnics, 2015

Abstract Cocrystals of 1,3,5,7‐tetranitro‐1,3,5,7‐tetraazacyclooctane (HMX) and 2,4,6‐trinitrotoluene (TNT) with high energy and low sensitivity were obtained by a spray drying method. Scanning electron microscopy (SEM), X‐ray diffraction (XRD), and Fourier Transform Raman spectroscopy ...

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Reaction of a Particle Suspension in a Rapidly‐Heated Oxidizing Gas

11-May-2015 | Michael Soo, Samuel Goroshin, Jeffrey M. Bergthorson, David L. Frost, Propellants, Explosives, Pyrotechnics, 2015

Abstract The reaction of a suspension of solid particles in a rapidly‐heated oxidizing gas is relevant to metalized explosives and propellants, as well as to combustion of solid fuel‐particle suspensions in premixed‐gaseous‐fuel clouds encountered in accidents within the mining and process ...

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