Results 191 to 200 of about 327,422 (252)
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Characteristics of NEPE Propellant with Ammonium Dinitramide (ADN)

Advanced Materials Research, 2011
The theoretical performances of NEPE (nitrate ester plasticized polyether) propellant with and without ADN were calculated with minimum free energy method. The burning characteristics and the thermal decomposition of propellants were determined by nickel chromium wire method and TG- DTG, respectively.
Wei Qiang Pang   +3 more
openaire   +1 more source

CO2 Laser-Induced Combustion of Ammonium Dinitramide (ADN)

Combustion and Flame, 1998
Abstract 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
openaire   +1 more source

High performance microthruster with ammonium-dinitramide-based monopropellant

Sensors and Actuators A: Physical, 2018
Abstract A high performance environmentally friendly ammonium dinitramide (ADN) based liquid monopropellant was used to develop a thruster with improved performance compared to a conventional hydrogen peroxide propellant microthruster. Compared to regular thrusters, microthrusters have high heat loss due to the higher reactor surface area to volume ...
Doyun Lee, Juwon Kim, Sejin Kwon
openaire   +1 more source

Design of an ammonium dinitramide compatible polymer matrix

Journal of Applied Polymer Science, 2011
AbstractTo enable future environmentally friendly access to space by means of solid rocket propulsion a viable replacement to the toxic ammonium perchlorate (AP) oxidizer is needed. Ammonium dinitramide (ADN) holds great promise as a green replacement. Unfortunately compatibility issues with many polymer binder systems have hampered the development of ...
Martin Rahm   +2 more
openaire   +1 more source

Ammonium Dinitramide:  Kinetics and Mechanism of Thermal Decomposition

The Journal of Physical Chemistry A, 1997
Thermal decomposition of ammonium dinitramide (ADN) has been studied by differential scanning calorimetry (DSC) and thermal gravimetry combined with mass spectrometry (TG−MS). ADN decomposes in the range 130−230 °C with an overall heat release of 240 ± 40 kJ mol-1.
Sergey Vyazovkin, Charles A. Wight
openaire   +1 more source

Combustion of Ammonium Dinitramide, Part 2: Combustion Mechanism

Journal of Propulsion and Power, 2006
Temperature profiles in the ammonium dinitramide (ADN) combustion wave were measured in the 0.04-10 MPa pressure interval using thin tungsten-rhenium thermocouples. The data obtained suggest that the ADN decomposition reaction in the condensed zone plays a dominant role in burning at low pressures. The heat feedback from the gas to the surface appeared
Valery P. Sinditskii   +3 more
openaire   +1 more source

Combustion of ammonium dinitramide based solid propellant with PBT as energetic binders

Propellants, explosives, pyrotechnics
Focusing on a new kind of solid propellants, which takes the ammonium dinitramide (ADN) as the high‐energetic oxidant, and 3,3‐bis(azidomethyl)oxetane and tetrahydrofuran copolymers (PBT) as the high‐energetic fuel binder, the burning rates and the ...
Haitao Yu   +4 more
semanticscholar   +1 more source

Proton transfer in gas-phase ammonium dinitramide clusters

The Journal of Chemical Physics, 2003
Proton transfer in gaseous ammonium dinitramide (ADN) clusters up to (ADN)2 is studied by using density-functional theory. Proton transfer between the hydrogen dinitramide and ammonia units does not occur in the ADN monomer, rather the ammonia–hydrogen dinitramide complex is stabilized by strong hydrogen bonding.
Alavi, Saman, Thompson, Donald L.
openaire   +2 more sources

Performance optimization of ammonium dinitramide-based liquid propellant in pulsed laser ablation micro-propulsion using LIBS

Plasma Science and Technology
The efficacy of spacecraft propulsion systems significantly depends on the choice of propellant. This study utilized laser-induced breakdown spectroscopy (LIBS) to investigate the impact of different fuel types, fuel ratios, and laser energies on the ...
L. Jiang 蒋   +5 more
semanticscholar   +1 more source

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 ammonium
Zakaria Harimech   +2 more
openaire   +1 more source

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