Results 151 to 160 of about 535 (196)

An Overview on the Synthetic Routes and Properties of Ammonium Dinitramide (ADN) and other Dinitramide Salts

Propellants, Explosives, Pyrotechnics, 2004
AbstractIn recent years, there has been a considerable interest in the development of novel type of high performance propellants for use in solid rocket motors. Ammonium salt of dinitramidic acid NH4N(NO2)2 (ADN) has attracted wide interest as a potentially useful energetic oxidizer for rocket propellants because of its clean and environment‐friendly ...
Subbiah Venkatachalam, Gopalakrishnan Santhosh, Kovoor Ninan Ninan   +2 more
exaly   +2 more sources

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, Eva Malmström, Carina Eldsäter   +2 more
openaire   +2 more sources

Energetics of ammonium dinitramide decomposition steps

Computational and Theoretical Chemistry, 1998
Abstract The structures, energies at 0 K and enthalpies at 298 K have been computed for 37 molecules, ions and transition states that have been implicated in the thermal decomposition of ammonium dinitramide. A density functional procedure was used: DF/B3P86/6–31 + G ∗∗.
Peter Politzer, Jorge M Seminario, Mónica C Concha   +2 more
exaly   +2 more sources

Ammonium Dinitramide (ADN)–Prilling, Coating, and Characterization

Propellants, Explosives, Pyrotechnics, 2009
AbstractAmmonium dinitramide (ADN) is the promising oxidizer, which is expected to be applied, e.g., in solid rocket propellants. The manufacturing of spherical ADN particles (the so‐called ADN‐Prills) with useful morphology and reproducible quality is realized by means of the emulsion crystallization process.
Thomas Heintz
exaly   +2 more sources

Combustion of Propellants with Ammonium Dinitramide

Propellants, Explosives, Pyrotechnics, 1998
AbstractThis paper reports a series of experiments involving ammonium dinitramide (ADN), a new energetic oxidizer of potential use in composite solid propellants. The experiments include (a) self‐deflagration of pressed pellets of ADN; (b) combustion of sandwiches with ADN laminae on both sides of a binder lamina that is either “pure” or filled with ...
E. Price, S. Chakravarthy, J. Freeman, R. Sigman   +3 more
openaire   +1 more source

Hazardous Properties of Molten Ammonium Dinitramide

Propellants, Explosives, Pyrotechnics, 2020
AbstractThe purpose of this article is to alert our peers on the danger faced by those who carry out experiments involving molten ammonium dinitramide (ADN). In recent experiments aiming at preparing submicron particles of this compound, a preliminary study of the sensitivity to impact of molten ADN was performed.
Marc Comet, Cédric Schwartz, Franck Oudot, Fabien Schnell, Denis Spitzer   +4 more
openaire   +1 more source

Combustion of ammonium dinitramide

Combustion and Flame, 1999
The burning rate of ammonium dinitramide (ADN) has been studied as a function of pressure and different additives, the temperatures in the combustion front, and the composition of combustion products. Some kinetic characteristics of decomposition have been also obtained.
V STRUNIN, A DYAKOV, G MANELIS
openaire   +1 more source

Research on optimizing the synthesis of ammonium dinitramide

Journal of Military Science and Technology, 2022
Ammonium dinitramide (ADN) is one of the potential oxidants in solid propellant formulations because it is environmentally friendly, has a high specific impulse, and has minimum signature exhaust gases. ADN was synthesized through the nitration reaction of potassium sulfamate salt with a mixture of sulfuric acid and nitric acid.
Quang Hieu Pham, Anh Thuc Bui, Duc Long Nguyen, Kim Dao Pham   +3 more
openaire   +1 more source

Comparative DFT Study of Crystalline Ammonium Perchlorate and Ammonium Dinitramide

The Journal of Physical Chemistry A, 2008
The electronic structure, vibrational properties, absorption spectra, and thermodynamic properties of crystalline ammonium perchlorate (AP) and ammonium dinitramide (ADN) have been comparatively studied using density functional theory in the local density approximation.
Weihua, Zhu, Tao, Wei, Wei, Zhu, Heming, Xiao   +3 more
openaire   +2 more sources

MODELING THE PHOTOLYSIS OF AMMONIUM DINITRAMIDE IN NATURAL WATERS

Environmental Toxicology and Chemistry, 2000
Abstract Photolytic rate constants for the novel energetic compoundammonium dinitramide(ADNweredetermined in order to understand the fate of ADN in natural bodies of water. Quantum yields were measured between 290 and 400 nm using a lamp system, and these values were combined with absorption of light in a water column to model photolysis
Michelle K Beretvas, John P Hassett, Susan E Burns, Trisha M Basford   +3 more
openaire   +1 more source