Results 141 to 150 of about 169,146 (181)

Stabilization of ammonium dinitramide in the liquid phase

Russian Chemical Bulletin, 2000
The kinetics of accumulation of the main products of thermal decomposition of ammonium dinitramide in the melt was investigated. The isotope composition of nitrogen-containing gases evolved by the decomposition of 15NH4N(NO2)2 and NH4 15N(NO2)2 was found.
A. B. Andreev, O. V. Anikin, A. P. Ivanov, V. K. Krylov, Z. P. Pak   +4 more
openaire   +1 more source

High performance microthruster with ammonium-dinitramide-based monopropellant

Sensors and Actuators A: Physical, 2018
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.
Doyun Lee, Sejin Kwon, Juwon Kim
exaly   +2 more sources

Thermal decomposition of ammonium dinitramide and mechanism of anomalous decay of dinitramide salts

Russian Chemical Bulletin, 1999
Thermal decomposition of ammonium dinitramide proceedsvia homolytic rupture of the N−NO2 bond and partially by the proton transfer reaction. The monomolecular decay of the anion to N2O and NO3 − in the solid state at 60 °C occurs with higher rates than those in the melt.
A. N. Pavlov, V. N. Grebennikov, L. D. Nazina, G. M. Nazin, G. B. Manelis   +4 more
openaire   +1 more source

New technologies for ammonium dinitramide based monopropellant thrusters – The project RHEFORM

Acta Astronautica, 2018
New technologies are developed in the project RHEFORM to enable the replacement of hydrazine with liquid propellants based on ammonium dinitramide (ADN).
Charles KAPPENSTEIN, Christian Hendrich, Martin Schwentenwein   +2 more
exaly   +2 more sources

On the mechanism of thermal decomposition of ammonium dinitramide (review)

Combustion, Explosion, and Shock Waves, 2016
Despite significant progress in studying thermal decomposition of ammonium dinitramide (ADN), the kinetics of the process at the level of elementary stages has not been adequately understood. The aim of this review is to summarize various published data, which are of interest for studying and simulating the processes of thermal decomposition and ...
N. E. Ermolin, V. M. Fomin
openaire   +2 more sources

Role of Additives in the Combustion of Ammonium Dinitramide

Propellants, Explosives, Pyrotechnics, 2014
AbstractThe thermal decomposition behavior and combustion characteristics of mixtures of ammonium dinitramide (ADN) with additives were studied. Micrometer‐sized particles of Al, Fe2O3, TiO2, NiO, Cu(OH)NO3, copper, CuO, and nanometer‐sized particles of aluminum (Alex) and CuO (nano‐CuO) were employed.
Koji Fujisato, Hiroto Habu, Atsumi Miyake, Keiichi Hori, Alexander B. Vorozhtsov   +4 more
openaire   +1 more source

Combustion of ammonium dinitramide/polycaprolactone propellants

Proceedings of the Combustion Institute, 2002
This paper is devoted to the investigation of characteristics and mechanisms of combustion of a compositesolid rocket pseudo-propellant of stoichiometric composition based on ammonium dinitramide (ADN) and polycaprolactone (PCL). Experimental data on the dependence of burning rate on pressure in the pressure range of 4–8 MPa for the ADN/PCL propellant ...
O.P. Korobeinichev, A.A. Paletsky, A.G. Tereschenko, E.N. Volkov   +3 more
openaire   +1 more source

Ammonium Dinitramide−Water:  Interaction and Properties

Journal of Chemical & Engineering Data, 2006
The interaction between ammonium dinitramide (ADN) and water was experimentally investigated by determining the solid−liquid phase diagram for the system ADN−water and by measuring its critical relative humidity at 25 °C. Additionally, the density of aqueous ADN solutions of different compositions were measured in the temperature range from (5 to 85 ...
openaire   +1 more source

Review of Ammonium Dinitramide Toxicity Studies

2011
Abstract : Ammonium dinitramide (ADN) is a class 1.1 explosive oxidizer being considered for use in solid rocket propellant mixtures. Studies performed evaluating the toxicity of ADN have included an acute and subacute toxicity screen, a 90-day reproductive screen and three follow-on reproductive studies, electron paramagnetic resonance (EPR ...
Teresa R. Sterner, David R. Mattie
openaire   +1 more source

Crystallization of Spherical Ammonium Dinitramide (ADN) Particles

Propellants, Explosives, Pyrotechnics, 2000
The described process aims to produce spherical ammonium dinitramide (ADN) particles of different sizes with a narrow particle size distribution. The crystallization process presented in this paper consists of two stages. In the first stage, molten ADN is dispersed in a continuous phase in which ADN is insoluble.
Ulrich Teipel, Thomas Heintz, Horst H. Krause   +2 more
openaire   +1 more source