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569 Newest Publications in propellants, explosives, pyrotechnics

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Development of a Design Methodology Against Fast Cook‐Off Threat for Insensitive Munitions

29-Apr-2016 | Hakan Sahin, Bekir Narin, D. Funda Kurtulus, Propellants, Explosives, Pyrotechnics, 2016

Abstract This work provides a design methodology for a typical energetic system to get Type V insensitive munition (IM) response against fast cook‐off threat. Experimental and numerical results for a generic test item filled with PBXN‐109 explosive are presented. Two key aspects of IM design ...

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Insensitive High Explosives II: 3,3′‐Diamino‐4,4′‐azoxyfurazan (DAAF)

29-Apr-2016 | Ernst‐Christian Koch, Propellants, Explosives, Pyrotechnics, 2016

Abstract This paper reviews the synthesis, properties, performance, and safety of the insensitive explosive 3,3′‐diamino‐4,4′‐azoxyfurazan (DAAF, C4H4N8O3), CAS‐No. [78644‐88‐0], and 18 formulations based on it. Though having a moderate crystal density only, DAAF offers high positive heat of ...

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Confocal Scanning Laser Microscopic Study of the RDX Defect Structure in Deformed Polymer‐Bonded Explosives

28-Apr-2016 | Antoine E. D. M. van der Heijden, Richard H. B. Bouma, Propellants, Explosives, Pyrotechnics, 2016

Abstract The influence of an explosion‐driven deformation on the defect structure in RDX crystals embedded in a polymer‐bonded explosive was investigated by means of confocal scanning laser microscopy. The images were compared to the defect structure in the as‐received RDX grades, embedded in ...

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Radial Blast Prediction for High Explosive Cylinders initiated at Both Ends

27-Apr-2016 | Aline C. Anastacio, Clare Knock, Propellants, Explosives, Pyrotechnics, 2016

Abstract This paper presents experimental results for the double ended initiation of cylindrical, explosive charges. Bare cylindrical charges of PE4 (RDX/binder 88/12 %) were used with length to diameter ratios of 1/3.7 to 5.75/1 and masses of 0.25 to 0.45 kg. Pressure measurements were taken ...

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Hermetic Thermal Behavior of 3,4‐Diaminofurazan (DAF)

27-Apr-2016 | Yanfeng Li, Xiaofeng Wang, Kangzhen Xu, Bozhou Wang, Jirong Song, Fengqi Zhao, Propellants, Explosives, Pyrotechnics, 2016

Abstract Hermetic thermal behavior of 3,4‐diaminofurazan (DAF) was studied by DSC method with special high‐pressure hermetic crucibles. The complete exothermic decomposition process of DAF can be provided. The extrapolated onset temperature, peak temperature, and enthalpy of decomposition at a ...

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Sensitivity and Performance of Energetic Materials

18-Apr-2016 | Svatopluk Zeman, Marcela Jungová, Propellants, Explosives, Pyrotechnics, 2016

Abstract This paper provides an overview of the main developments over the past nine years in the study of the sensitivity of energetic materials (EM) to impact, shock, friction, electric spark, laser beams, and heat. Attention is also paid to performance and to its calculation methods. ...

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A Miniature Device for Shock Initiation of Hexanitrostilbene by High‐Speed Flyer

18-Apr-2016 | Qingxuan Zeng, Bing Li, Mingyu Li, Xingyu Wu, Propellants, Explosives, Pyrotechnics, 2016

Abstract A miniature device for shock initiation of the hexanitrostilbene (HNS) through micro‐charge detonation‐driven flyer was fabricated. This device consisted of the substrate, micro‐charge, flyer, and barrel. Four types of flyer (titanium of 28 μm, aluminum of 22 μm, copper of 22 μm and ...

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Generalized Method for Gun Propellant Formulation Design

18-Apr-2016 | Nanduri V. Sudarsan, Samir K. Das, Smita D. Naik, Propellants, Explosives, Pyrotechnics, 2016

Abstract Determination of propellant formulation by ballistic requirement is an important area of research in recent times. In this study, a theoretical method for the design of gun propellant formulation using primary data of ingredients and necessary thermochemical properties of the ...

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Synthesis, Crystal Structure, and Thermal Behavior of 3‐(4‐Aminofurazan‐3‐yl)‐4‐(4‐nitrofurazan‐3‐yl)furazan (ANTF)

18-Apr-2016 | Qianhong Yi, Dehui Liang, Qing Ma, Ming Huang, Bisheng Tan, Yucun Liu, Yu Chi, Propellants, Explosives, Pyrotechnics, 2016

Abstract The energetic material 3‐(4‐aminofurazan‐3‐yl)‐4‐(4‐nitrofurazan‐3‐yl)furazan (ANTF) with low melting‐point was synthesized by means of an improved oxidation reaction from 3,4‐bis(4′‐aminofurazano‐3′‐yl)furazan. The structure of ANTF was confirmed by 13C NMR spectroscopy, mass ...

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Investigation of the Failure Mechanism of HTPB/AP/Al Propellant by In‐situ Uniaxial Tensile Experimentation in SEM

18-Apr-2016 | Marthinus C. J. van Ramshorst, Giuseppe L. Di Benedetto, Willem Duvalois, Peter A. Hooijmeijer, Antoine E. D. M. van ..., Propellants, Explosives, Pyrotechnics, 2016

Abstract The failure mechanism of a propellant consisting of hydroxyl terminated poly‐butadiene filled with ammonium perchlorate and aluminum (HTPB/AP/Al) was determined by performing in‐situ uniaxial tensile tests in a scanning electron microscope (SEM). The experimental test plan contained ...

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