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388 Newest Publications in propellants, explosives, pyrotechnics

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Directional Interactions of α‐Particles with FOX‐7. A DFT Study

21-10-2014 | Lemi Türker, Propellants, Explosives, Pyrotechnics, 2014

Abstract FOX‐7 is exposed to the effects of α‐particles from selected directions of approach. Various energies and properties of these composite FOX‐7 systems (FOX‐7+α‐particle) are obtained. The effect of α‐particles on FOX‐7 is drastic. The CC double bond turns into a single bond and one of ...

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Cage Compounds as Potential Energetic Oxidizers: A Theoretical Study of a Cage Isomer of N2O3

21-10-2014 | Robert J. Buszek, Jerry A. Boatz, Propellants, Explosives, Pyrotechnics, 2014

Abstract Ab initio electronic structure calculations are employed to investigate the cage isomer of N2O3 (c‐N2O3) as a viable energetic oxidizer. c‐N2O3 is vibrationally stable with a large heat of formation of 7.95 kJ g−1 and can produce larger enthalpies of combustion than other commonly ...

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Kinetics of Nano Titanium Dioxide Catalyzed Thermal Decomposition of Ammonium Nitrate and Ammonium Nitrate‐Based Composite Solid Propellant

13-10-2014 | Anuj A. Vargeese, Krishnamurthi Muralidharan, V. N. Krishnamurthy, Propellants, Explosives, Pyrotechnics, 2014

Abstract This study deals with the influence of nanosized titanium dioxide (TiO2) catalysts on the decomposition kinetics of ammonium nitrate (AN) and ammonium nitrate‐based composite solid propellant. TiO2 nanocatalyst with an average particle size of 10 nm was synthesized by sol‐gel method ...

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Effects of MgH2/Mg(BH4)2 Powders on the Thermal Decomposition Behaviors of 2,4,6‐Trinitrotoluene (TNT)

13-10-2014 | Miao Yao, Liping Chen, Jinhua Peng, Propellants, Explosives, Pyrotechnics, 2014

Abstract The thermal properties of 2,4,6‐trinitrotoluene (TNT), TNT/MgH2, and TNT/Mg(BH4)2 were investigated by differential scanning calorimetry (DSC) and accelerating rate calorimetry (ARC). The results show that addition of MgH2 or Mg(BH4)2 to TNT has a great effect on the DSC decomposition ...

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Analysis of Polar Precursors of 1,3,5,7‐Tetranitro‐1,3,5,7‐tetrazocine (HMX) Using Hydrophilic Interaction Chromatography

13-10-2014 | Chao Zhu, Zihui Meng, Zhibin Xu, Min Xue, Fengyan Wang, Yue Liu, Zhihui Lin, Guangmin Qin, Zhongxue Ge, Bozhou Wang, Propellants, Explosives, Pyrotechnics, 2014

Abstract Octahydro‐1,3,5,7‐tetranitro‐1,3,5,7‐tetrazocine (HMX) is currently one of the most widely used explosives. 1,3,5,7‐Tetraacetyl‐1,3,5,7‐tetraazacyclooctane (TAT) is an attractive precursor for the synthesis of HMX; the nitration of this key precursor results in both high yield and ...

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Study on the Synthesis and Interfacial Interaction Performance of Novel Dodecylamine‐Based Bonding Agents Used for Composite Solid Propellants

02-10-2014 | Yu Chen, Yun‐fei Liu, Liang Shi, Wei Yang, Wei‐shang Yao, Propellants, Explosives, Pyrotechnics, 2014

Abstract An effective pathway was explored to design and select proper bonding agents that could effectively improve the interfacial interactions between bonding agents and solid particles, with three novel synthesized alkyl bonding agents, dodecylamine‐N,N‐di‐2‐hydroxypropyl‐acetate (DIHPA), ...

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Variation of Methods in Small‐Scale Safety and Thermal Testing of Improvised Explosives

29-09-2014 | Mary M. Sandstrom, Geoffrey W. Brown, Daniel N. Preston, Colin J. Pollard, Kirstin F. Warner, Daniel N. Sorensen, Da ..., Propellants, Explosives, Pyrotechnics, 2014

Abstract One of the first steps in establishing safe handling procedures for explosives is small‐scale safety and thermal (SSST) testing. To better understand the response of homemade or improvised explosives (HMEs) to SSST testing, 16 HME materials were compared to three standard military ...

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Combustion and Material Characterization of Highly Tunable On‐Chip Energetic Porous Silicon

29-09-2014 | Nicholas W. Piekiel, Christopher J. Morris, Wayne A. Churaman, Michael E. Cunningham, David M. Lunking, Luke J. Currano, Propellants, Explosives, Pyrotechnics, 2014

Abstract We present a comprehensive investigation into the tunable combustion of on‐chip porous silicon energetic materials. The exothermic reaction occurs between high surface area nanoscale porous silicon and a solution‐deposited sodium perchlorate oxidizer that penetrates each pore. The ...

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Stability Conditions and Interior Ballistics of Recoilless Projected Water Disruptor

26-09-2014 | Marek Radomski, Propellants, Explosives, Pyrotechnics, 2014

Abstract The results of an analysis concerning the recoil effect as well as a mathematical model describing the internal ballistics of a two‐chambered projected water disruptor launcher are presented herein. Conditions for stability of the disruptor are formulated. The considerations are ...

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Flameless Combustion Synthesis of Ni and Ag Nanoparticles in Ballasted Systems: A Time‐Resolved X‐ray Diffraction Study

25-06-2014 | Yurii M. Mikhailov, Victor V. Aleshin, Alexandra M. Kolesnikova, Dmitrii Yu. Kovalev, Vasilii. I. Ponomarev, Propellants, Explosives, Pyrotechnics, 2014

Abstract The combustion of cellulose nitrate in ballasted mixtures containing an organic binder and nickel hydroxycarbonate or silver carbonate as precursors resulted Ni or Ag nanoparticles. The formation of Ni and Ag nanoparticles from flameless combustion of cellulose nitrate was monitored ...

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