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410 Newest Publications in propellants, explosives, pyrotechnics

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Study of Some Low Temperature Gas‐Generating Compositions

10-12-2014 | Xinliang Mei, Hongtao Yang, Xiangyu Li, Yanchun Li, Yi Cheng, Propellants, Explosives, Pyrotechnics, 2014

Abstract Some low temperature gas‐generating compositions, comprised of guanidine nitrate (GN), basic cupric nitrate (BCN), and ferric oxide (Fe2O3), were studied herein. The thermal decomposition properties and burning characteristics of GN/BCN/Fe2O3 mixtures were investigated by ...

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Physiochemical Characterization of Iodine(V) Oxide, Part 1: Hydration Rates

10-12-2014 | Brian K. Little, Samuel B. Emery, Joshua C. Nittinger, Ryan C. Fantasia, C. Michael Lindsay, Propellants, Explosives, Pyrotechnics, 2014

Abstract In the first of a series of papers on the iodine(V) oxide system, the chemical and physical properties associated with iodine(V) oxide in its anhydride (I2O5) and hydrated states (HI3O8 and HIO3) are examined. The three forms of the oxide have been investigated utilizing differential ...

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Predicting Blast Waves from the Axial Direction of a Cylindrical Charge

10-12-2014 | Clare Knock, Nigel Davies, Thomas Reeves, Propellants, Explosives, Pyrotechnics, 2014

Abstract Bare, cylindrical, explosive charges produce secondary shock waves in the direction of least presented area. Whilst the source of these shock waves was explored in the 1940’s, no attempt was made to predict them. This paper describes the detonation of bare, cylindrical charges of PE4 ...

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Chromium Copper Catalysts for LiClO4 Decomposition

09-12-2014 | Yanwei Zhang, Ke Yan, Kunzan Qiu, Jianzhong Liu, Yang Wang, Junhu Zhou, Propellants, Explosives, Pyrotechnics, 2014

Abstract Chromium copper (CrCu) catalysts are well‐known burning rate catalysts for solid propellants, which were used as energy source for rocket propulsion [1]. The present work reports the enhancement of lithium perchlorate (LiClO4) by employing copper chromium as a catalyst. The LiClO4 ...

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Fragment Velocity Distribution of Cylindrical Rings Under Eccentric Point Initiation

02-12-2014 | Guangyan Huang, Wei Li, Shunshan Feng, Propellants, Explosives, Pyrotechnics, 2014

Abstract A design mode, in which a casing is filled with a charge initiated off‐centre (eccentric point initiation), is common in the field of explosion and structural protection. The fragment velocity distribution along the circumference of the casing is distinctly non‐uniform due to the ...

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Combustion Properties of Amino‐Substituted Guanidinium 4,4′,5,5′‐Tetranitro‐2,2′‐biimidazolate(N4BIM) Salts

02-12-2014 | Bryce C. Tappan, David E. Chavez, Propellants, Explosives, Pyrotechnics, 2014

Abstract This paper describes the combustion properties of the amino‐substituted guanidinium 4,4′,5,5′‐tetranitro‐2,2′‐biimidazolate (N4BIM) series, including the bis‐mono, di and triaminoguanidinium salts. These salts are of interest as propellant ingredient additives, and in particular, the ...

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Calcium Sulfate as a Possible Oxidant in “Green” Silicon‐based Pyrotechnic Time Delay Compositions

24-11-2014 | Shepherd M. Tichapondwa, Walter W. Focke, Olinto Del Fabbro, Cheryl Kelly, Propellants, Explosives, Pyrotechnics, 2014

Abstract Chemical time delay detonators are used to control blasting operations in mines and quarries. Slow burning SiBaSO4 pyrotechnic delay compositions are employed for long time delays. However, soluble barium compounds may pose environmental and health risks. Hence inexpensive anhydrous ...

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TEX – 4,10‐Dinitro‐2,6,8,12‐tetraoxa‐4,10‐diazatetracyclo[5.5.0.05,9.03,11]‐dodecane – Review of a Promising High Density Insensitive Energetic Material

21-11-2014 | Ernst‐Christian Koch, Propellants, Explosives, Pyrotechnics, 2014

Abstract The title compound 4,10‐dinitro‐2,6,8,12‐tetraoxa‐4,10‐diazatetracyclo[5.5.0.05,903,11]‐dodecane – often referred to as TEX – is a very promising newcomer in the field of insensitive explosives. It is easily synthesized with good yield from cheap starting materials. TEX offers a ...

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The Effect of Pore Morphology on Hot Spot Temperature

21-11-2014 | George Arthur Levesque, Peter Vitello, Propellants, Explosives, Pyrotechnics, 2014

Abstract Composite explosives contain pores that collapse under shock wave interaction generating localized regions of heat known to be important in the initiation of high explosives. Understanding pore collapse under shock loading is essential to create predictive reactive flow models to ...

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Investigation of Crystal Morphology and Shock Sensitivity of Cyclotrimethylenetrinitramine Suspension by Rheology

21-11-2014 | Robert J. Hudson, Mohammed Moniruzzaman, Philip P. Gill, Propellants, Explosives, Pyrotechnics, 2014

Abstract Crystal morphology and shock sensitivity of a series of cyclotrimethylenetrinitramine (RDX) particles suspended from ethylene glycol were investigated. Flow rheology was employed to measure the rheological properties of the suspensions at constant temperature; it was observed that the ...

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