Results 161 to 170 of about 668 (194)
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Modeling the chemical reactions of ammonium dinitramide (ADN) in a flame
Combustion and Flame, 2001Ammonium dinitramide (ADN) is a new energetic material that can be used as an oxidizer in solid rocket propellants. In the last few years, a number of papers devoted to the study of ADN combustion mechanism have been published. Molecular beam mass-spectrometry and thermocouple measurements are here used to study ADN flame structure at pressures of 0.3 ...
Oleg P Korobeinichev +2 more
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CO2 Laser-Induced Combustion of Ammonium Dinitramide (ADN)
Combustion and Flame, 1998Abstract Experimental studies of CO 2 laser-induced combustion of ammonium dinitramide (ADN) were performed to determine the key physical and chemical processes involved. Experimental conditions covered the range of 0.1–5.0 atmospheres in argon and incident laser heat fluxes of 20 to 300 W/cm 2 . Quantitative gaseous species measurements obtained by
B.L Fetherolf, T.A Litzinger
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Mechanism and Kinetics for Ammonium Dinitramide (ADN) Sublimation: A First-Principles Study
The Journal of Physical Chemistry A, 2012The mechanism for sublimation of NH(4)N(NO(2))(2) (ADN) has been investigated quantum-mechanically with generalized gradient approximation plane-wave density functional theory calculations; the solid surface is represented by a slab model and the periodic boundary conditions are applied.
Zhu, RS (Zhu, R.S.) +2 more
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The properties of ammonium dinitramide (ADN): Part 1, basic properties and spectroscopic data
Journal of Energetic Materials, 2000Abstract Basic properties and spectroscopic data for the energetic oxidizer ADN (Ammonium dinitramide (NH4N(NO2)2)) are presented. The ADN used for this work was synthesized by a new efficient and environmentally friendly method. The method is based on a direct nitration of salts of sulfamic acid by ordinary mixed acid, followed by neutralization and ...
H. Östmark +4 more
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New Journal of Chemistry, 2020
An overall decomposition mechanism of ammonium dinitramide was systematically investigated via DFT calculations and thermogravimetry-Fourier transform infrared-mass spectrometer (TG-FTIR-MS) techniques.
Kuan Wang +8 more
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An overall decomposition mechanism of ammonium dinitramide was systematically investigated via DFT calculations and thermogravimetry-Fourier transform infrared-mass spectrometer (TG-FTIR-MS) techniques.
Kuan Wang +8 more
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Chemical Engineering & Technology, 2002
Only three references about the reactions of ammonia (NH 3 ) with dinitrogen pentoxide (N 2 O 5 ) have been published in the course of the last 150 years. None of them describes the reactions referring to the products in dependence on the reaction conditions.
C. Frenck, W. Weisweiler
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Only three references about the reactions of ammonia (NH 3 ) with dinitrogen pentoxide (N 2 O 5 ) have been published in the course of the last 150 years. None of them describes the reactions referring to the products in dependence on the reaction conditions.
C. Frenck, W. Weisweiler
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Ammonium Dinitramide (ADN) Decomposition as Green Propellant
Thermal decomposition of eco-friendly propellants such us ammonium dinitramide (ADN) aims to replace hydrazine in satellite systems. ADN, with formula [NH4]+[N(NO2)2]−, is a promising high-performance rocket propellant. It decomposes cleanly, producing gases such as NH3, H2O, NO, N2O, NO2, HONO, and HNO3, making it an attractive alternative to ammoniumZakaria Harimech +2 more
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Study of the thermal initiation of ammonium dinitramide (ADN) crystals and prills
Journal of Energetic Materials, 2000Abstract The thermal initiation by electron beam heating (and calibrated hot stage), of single crystals and prills of ADN, has been filmed / recorded in an Environmental Scanning Electron Microscope, from the formation of microscopic “reaction sites” (0.01 μm in diameter) to full crystal consumption.
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Flight Heritage of Ammonium Dinitramide (ADN) Based High Performance Green Propulsion (HPGP) Systems
Propellants, Explosives, Pyrotechnics, 2019AbstractThe flight heritage for ECAPS’ propulsion technology based of Ammonium DiNitramide (ADN), started 2010 with a successful 5 years on orbit demonstration mission of the PRISMA satellite. Since 2016, launches of satellites from 3 different continents continues to add to the flight heritage.
Mathias Persson +2 more
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Toxicological & Environmental Chemistry, 2000
The biodegradation of one popular nitramine energetics, ammonium dinitramide (ADN) by mixture of denitrifying bacterial species was investigated. ADN was observed to be effectively mineralized in the anaerobic mixed culture. The initial ADN concentration of 250 mg/L was reduced to non‐detectable levels (> 99% removal efficiency) in 5 days of incubation
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The biodegradation of one popular nitramine energetics, ammonium dinitramide (ADN) by mixture of denitrifying bacterial species was investigated. ADN was observed to be effectively mineralized in the anaerobic mixed culture. The initial ADN concentration of 250 mg/L was reduced to non‐detectable levels (> 99% removal efficiency) in 5 days of incubation
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