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676 Newest Publications in propellants, explosives, pyrotechnics

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Thermal and Sensitivity Study of Dihydroxyl Ammonium 5,5′‐Bistetrazole‐1,1′‐diolate (TKX‐50)‐based Melt Cast Explosive Formulations

19-May-2017 | Dilip Badgujar, Mahadev Talawar, Propellants, Explosives, Pyrotechnics, 2017

Abstract Dihydroxyl ammonium 5,5′‐bistetrazole‐1,1′‐diolate (TKX‐50) is a promising energetic material with predicted performance similar to RDX as well as to CL‐20. TKX‐50 may be used as a booster in propellant applications. In the present study, TKX‐50 was evaluated as a possible replacement ...

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The Effect of Ionic Strength and pH on the Electrostatic Stabilization of NanoRDX

19-May-2017 | Mouhcine Doukkali, Rajen B. Patel, Victor Stepanov, Hamid Hadim, Propellants, Explosives, Pyrotechnics, 2017

Abstract In this work, 1,3,5‐trinitroperhydro‐1,3,5‐triazine (RDX) with an average crystal size of 300 nm was prepared by bead milling to examine the effect of pH and ionic strength on the Zeta potential. The results showed that nanoRDX has no isoelectric point within the entire range studied ...

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Critical Criterion for the Shock Initiation/Ignition of Cylindrical Charges with Thin Aluminum Shell Impacted by Steel Fragment

17-May-2017 | Y. X. Xu, P. Gao, S. S. Wang, Propellants, Explosives, Pyrotechnics, 2017

Abstract The shock initiation/ignition of Cylindrical Charges Covered with thin Aluminium Shell (CCCAS) by steel fragment impact was experimentally and theoretically investigated. The critical specific kinetic energy criterion and threshold for the shock reaction of CCCAS were obtained. During ...

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Preparation and Properties of a nRDX‐based Propellant

10-May-2017 | Binbin Wang, Xin Liao, Zeshan Wang, Luigi T. DeLuca, Zhitao Liu, You Fu, Propellants, Explosives, Pyrotechnics, 2017

Abstract The incorporation of nano‐scaled cyclotrimethylene trinitramine (nRDX) in nitrocellulose (NC)‐based propellants poses processing problems when following conventional methods. Hence, a new preparation method containing a pre‐dispersion process was developed, by which 30 mass % RDX ...

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Investigation on Impact Initiation Characteristics of Fluoropolymer‐matrix Reactive Materials

04-May-2017 | Jie Zhou, Yuan He, Yong He, Chuan Ting Wang, Propellants, Explosives, Pyrotechnics, 2017

Abstract In this study, the influence of various mass ratio of tungsten (W) and composite porosity upon the reaction efficiency of fluoropolymer‐matrix reactive materials (RMs) under different impact velocities was investigated. A series of ballistic experiments were carried out by using a ...

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Gas‐phase Concentration of Triacetone Triperoxide (TATP) and Diacetone Diperoxide (DADP)

31-Mar-2017 | Martin A. C. Härtel, Thomas M. Klapötke, Benedikt Stiasny, Jörg Stierstorfer, Propellants, Explosives, Pyrotechnics, 2017

Abstract The present investigation is about the determination of the gas phase concentration parameters of the notorious explosives triacetone triperoxide (TATP, 1) and diacetone diperoxide (DADP, 2), which have been frequently used in improvised explosive devices. According to calculations ...

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The Effect of the Hydrogen Containing Material TiH2 on the Detonation Characteristics of Emulsion Explosives

30-Mar-2017 | Yang‐fan Cheng, Xiang‐rui Meng, Cheng‐tao Feng, Quan Wang, Shan‐shan Wu, Hong‐hao Ma, Zhao‐wu Shen, Propellants, Explosives, Pyrotechnics, 2017

Abstract In order to improve the detonation performance of emulsion explosives, a new type of emulsion explosives with TiH2 powders is developed. The influences of the amount of sensitizers GMs and energetic additives TiH2 on explosion characteristics of emulsion explosives are studied to ...

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Hypergolic Studies of Ethanol Based Gelled Bi‐Propellant System for Propulsion Application

29-Mar-2017 | Muhammad Shoaib Naseem, B.V.S. Jyoti, Seung Wook Baek, Hyung Ju Lee, Sung June Cho, Propellants, Explosives, Pyrotechnics, 2017

Abstract The experiments conducted in this study examined the hypergolicity and ignition delay of the formulated ethanol gelled fuel and hydrogen peroxide oxidizer bipropellant system. The hypergolicity and ignition delay data for bipropellant system are very important for propulsion ...

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Laser‐induced deflagration for the characterization of energetic materials

29-Mar-2017 | Eric S. Collins, Jennifer L. Gottfried, Propellants, Explosives, Pyrotechnics, 2017

Abstract Standard propellant and detonation tests typically performed to characterize the performance of energetic materials require large quantities of material (at least tens of grams) and can be expensive and time‐consuming. This work introduces a method for characterizing the deflagration ...

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Projectile Impact Ignition and Reaction Violent Mechanism for HMX‐based Polymer Bonded Explosives at High Temperature

16-Mar-2017 | Dai Xiaogan, Wen Yushi, Wen Miaoping, Huang Fenglei, Li Ming, Deng Chuan, Propellants, Explosives, Pyrotechnics, 2017

Abstract Determining the mechanism of transition from projectile‐impact ignition to detonation is a complex and difficult task with strong practical applications. Ignition due to low‐velocity projectile impact cannot be properly explained by the available theories. We attempted to determine ...

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