Results 171 to 180 of about 327,422 (252)

Separation of Ammonium Dinitramide from Reaction Mixture

Propellants, Explosives, Pyrotechnics, 1999
To separate ammonium dinitramide from the reaction mixture obtained in the reaction between NO2HS2O7 and nitramine in aceto-nitrile and subsequent neutralization with NH3 aqua the following procedure was applied: – separation of the solid precipitated during the reactions; – evaporation of the acetonitrile solution; – extraction of the ...
Monika Malesa, Wincenty Skupiński, Michal Jamróz   +2 more
openaire   +1 more source

Effects of Aluminum on the Thermal Behavior and Combustion of Ammonium Dinitramide at Elevated Pressure

Propellants, explosives, pyrotechnics
Ammonium dinitramide (ADN) represents a key oxidizer in the development of advanced green energetic materials, owing to its halogen‐free composition. To evaluate the influence of fine micro‐sized aluminum (Al) powder on ADN at elevated pressure, this
Kang Lei, Xiang Zhou, Zhi‐peng Cheng, Yu-xuan Li, Fei-yang Xu, Xing-liang Wu, N. Yang, Sen Xu   +7 more
semanticscholar   +1 more source

Electrospun Nano-boron–Ammonium Dinitramide Core–sheath Nanofibers

Fibers and Polymers
Hao Peng, Xiaolan Song, Dan Song, Yi Wang, Chongwei An, Chunwang Luo   +5 more
openaire   +2 more sources

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

Research on space thruster design based on ammonium dinitramide with electrical ignition

International Conference on Power Electronics and Artificial Intelligence
Currently, the liquid attitude orbit control power engine is an important part of the space propulsion system, and its function is to provide direct control of orbit and attitude for spacecraft, which is an important technical guarantee for the space ...
Jinle Zhu, Cheng Xu, Sitong Ren, Zixian Xu   +3 more
semanticscholar   +1 more source

Thermal behavior of new oxidizer ammonium dinitramide

Journal of Thermal Analysis and Calorimetry, 2012
Ammonium dinitramide (ADN) is a promising new oxidizer for solid propellants because of its high oxygen balance and high energy content, and halogen-free combustion products. One of the characteristics needed for solid propellants is stability. Heat, light, and moisture are factors affecting stability during storage, manufacture, and use. For practical
Hiroki Matsunaga, Hiroto Habu, Atsumi Miyake   +2 more
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

Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants

Propellants, explosives, pyrotechnics
Poor adhesion between the oxidizer and the polymeric matrix of composite solid propellants may result in detachment of interfaces upon stress. Bonding agents are applied to increase the mechanical outcome by linking the particles to the binder ...
Jessica O. Silva, Josiane R. C. Silva, K. Cardoso, Milton F. Diniz, M. Nagamachi, L. F. A. Ferrão   +5 more
semanticscholar   +1 more source

Thermal decomposition kinetics of ammonium dinitramide–guanylurea dinitramide mixture analyzed by isoconversional methods

Thermochimica Acta, 2008
Abstract The thermal decomposition kinetics of a mixture of high-energy oxidizers ammonium dinitramide (ADN) and guanylurea dinitramide (GUDN) have been studied by nonisothermal differential scanning calorimetry (DSC). Friedman's and Vyazovkin's advanced isoconversional (AIC-V) methods were used to investigate the dependence of activation energy ( E
G. Santhosh, Robbin Poh Cheng Tien, Ang How Ghee   +2 more
openaire   +1 more source