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730 Newest Publications in propellants, explosives, pyrotechnics


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Effect of Mixing Methods on the Thermal Stability and Detonation Characteristics of Ammonium Nitrate and Sodium Chloride Mixtures

08-Sep-2017 | Liu Tan, Dabin Liu, Sen Xu, Qiujie Wu, Lianghong Xia, Propellants, Explosives, Pyrotechnics, 2017

Abstract A study has examined the effect of mixing methods on the thermal stability and detonation characteristics of ammonium nitrate (AN) and sodium chloride (NaCl) mixtures. NaCl was mixed with AN by two methods. The thermal stability, detonation velocity and structural properties were ...


Mechanical Modifications of Paraffin‐based Fuels and the Effects on Combustion Performance

07-Sep-2017 | Yue Tang, Suhang Chen, Wei Zhang, Ruiqi Shen, Luigi T. DeLuca, Yinghua Ye, Propellants, Explosives, Pyrotechnics, 2017

Abstract In order to enhance the mechanical properties, 6 kinds of additives of stearic acid, polyethylene wax (A−C®6A), ethylene vinyl acetate copolymer (EVA), low density polyethylene (LDPE), polypropylene (PP) and high density polyethylene (HDPE) were blended in the paraffin fuel. ...


A Comparative Study of the Explosion Characteristics of IPN and IPN/JP‐10 Mixtures in Air Aerosols

07-Sep-2017 | Xueling Liu, Yue Wang, Propellants, Explosives, Pyrotechnics, 2017

Abstract This article presents a comparison of the explosion characteristics of mixtures of isopropyl nitrate (IPN, (CH3)2CHONO2) and JP‐10 (C10H16, tricycle [,6] decane) in air aerosols. The explosion pressure, flame temperature, maximum rate of pressure rise, maximum rate of ...


Preparation and Properties of CL‐20 based Composite by Direct Ink Writing

05-Sep-2017 | Jingyu Wang, Chuanhao Xu, Chongwei An, Changkun Song, Bin Liu, Bidong Wu, Xiaoheng Geng, Propellants, Explosives, Pyrotechnics, 2017

Abstract Direct ink writing (DIW) is a new trend in the micro‐scale charging of energetic materials. In this study, a CL‐20 based composite was prepared using DIW, and its properties were characterized. Results indicated that the particles of the composite are found at the sub‐micron level, ...


Mechanical Characteristics and Thermal Decomposition Behaviors of Polytetrahydrofuran Binder with Glycerol Propoxylate (Mn=1500) as a Crosslinking Agent

04-Sep-2017 | Makoto Kohga, Propellants, Explosives, Pyrotechnics, 2017

Abstract Polytetrahydrofuran (PTHF) is an effective binder ingredient for improving propellant performance, although it is not an energetic material. PTHF becomes sufficiently rubbery for use as a binder when a triol is added as a crosslinking modifier. In this study, glycerol propoxylate ...


Preliminary Study of New Propellants Containing Guanidinium or Triaminoguanidinium Azotetrazolate

04-Sep-2017 | Mateusz Szala, Marcin Hara, Leszek Szymańczyk, Zbigniew Surma, Propellants, Explosives, Pyrotechnics, 2017

Abstract Guanidinium and triaminoguanidinium azotetrazolate (GUAZ, TAGAZ) were used as high‐nitrogen compounds for the preparation of new propellants bound with nitrocellulose and plasticized with dibutyl phthalate and 3‐methyl‐3‐nitroxymethyloxetane. The new propellant compositions were ...


Measurement and Modelling of Pyrotechnic Time Delay Burning Rates: Method and Model Development

01-Sep-2017 | Yolandi C. Montgomery, Walter W. Focke, Cheryl Kelly, Propellants, Explosives, Pyrotechnics, 2017

Abstract The burning rates of a slow reacting Mn+Sb2O3 and a fast reacting Si+Pb3O4 time delay composition, filled into lead tubes, were measured with an infrared camera, with two thermocouples and in the form of a fully assembled detonator. The infrared camera method returned values that were ...


Effect of Sandpaper and Grain Size on Non‐Shock Initiated Reactions in HMX

31-Aug-2017 | John G. Reynolds, Peter C. Hsu, Gary A. Hust, Stephen A. Strout, D. Mark Hoffman, H. Keo Springer, Propellants, Explosives, Pyrotechnics, 2017

Abstract Three grades of HMX samples, coarse (A), coarse with a small amount of fines (B), and ultra‐fine (F), were tested for impact sensitivity by ERL drop hammer. The Type 12A test used sandpapers of three different compositions, 120‐, 180‐grit Si/C and 180‐grit garnet. Reaction was ...


Synthesis and Characterization of New Melt‐cast Energetic Salts: Dipotassium and Diaminoguanidinium N,N′‐Dinitro‐N,N′‐Bis(3‐dinitromethyl‐furazanate‐4‐yl)methylenediamine

28-Aug-2017 | Qing Ma, Hao Gu, Jinglun Huang, Dabin Liu, Jinshan Li, Guijuan Fan, Propellants, Explosives, Pyrotechnics, 2017

Abstract Diaminoguanidinium N,N′‐dinitro‐N,N′‐bis(3‐dinitromethyl‐furazanate‐4‐yl)methylenediamine (5), a new melt‐cast energetic salt, was designed and synthesized via metathesis reaction from dipotassium N,N′‐dinitro‐N,N′‐bis(3‐dinitromethyl‐furazanate‐4‐yl)methylenediamine (4) by using ...


Hot Spot Formation in Mock Materials in Impact Sensitivity Testing by Drop Hammer

25-Aug-2017 | John G. Reynolds, Peter C. Hsu, Gary A. Hust, Stephen A. Strout, H. Keo Springer, Propellants, Explosives, Pyrotechnics, 2017

Abstract Powder and granulated sugars were exposed to the drop hammer impact test configured with 120‐ and 180‐grit Si/C sandpapers. The sugars were selected as mock materials for HMX (Octahydro‐1,3,5,7‐tetranitro‐1,3,5,7‐tetrazocine). The drop heights ranged from 24.2 to 40.7 cm. Samples were ...


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