Results 41 to 50 of about 169,146 (181)

Preparation of low hygroscopicity ADN-based energetic composite microspheres and their performance study

AIP Advances, 2023
In order to reduce the hygroscopicity of ammonium dinitramide (ADN), four different ADN/nitrocellulose (NC) samples were prepared from acetone solutions using electrostatic spraying, with the concentrations of 2.5, 5, 7.5, and 10 mg ml−1.
Shimin Zhang, Hongbiao Huo, Baoyun Ye, Jingyu Wang, Chenhe Feng   +4 more
doaj   +1 more source

Prilling and Coating of Ammonium Dinitramide (ADN) Solid Green Propellant in Toluene Mixture Using Ultrasound Sonication

Aerospace, 2018
Ammonium Dinitramide (ADN) in its generic form has a long needle shaped structure, which hinders higher solid loading. Therefore, it is of utmost importance to optimize its crystal morphology into octagonal shapes.
Asad Rahman, Jitkai Chin, Kean How Cheah
doaj   +1 more source

Modification of Ammonium Dinitramide (ADN) by Co-Crystallization with Crown Ether

, 2023
Ammonium dinitramide (ADN) is a material for the development of innovative solid propellants with clean-burning characteristics that is chlorine-free with low signature.
Herrmann, Michael, Herrmannsdörfer, Dirk, Dresel, Alexander   +2 more
core   +1 more source

Thermal decomposition studies on ammonium dinitramide (ADN) and \u3csup\u3e15\u3c/sup\u3eN and \u3csup\u3e2\u3c/sup\u3eH isotopomers

, 1997
The thermal decomposition of ammonium dinitramide (ADN) and potassium dinitramide (KDN) were examined neat and in solution. Isothermal kinetics were measured (160-220 °C) by monitoring dinitramidate loss and were found to be first-order.
Coburn, M. D., Zheng, W., Oxley, J. C., Rogers, E., Smith, J. L.   +4 more
core   +1 more source

Optimization of Ammonium Sulfamate Nitration for the Preparation of Ammonium Dinitramide [PDF]

, 2014
The reaction kinetics for the preparation of ammonium dinitramide (ADN) is described. ADN is the ammonium salt of the dinitramide anion, and belongs to the group of inorganic oxidizers, mainly useful for energetic rocket propellant formulations ...
Singh, S. K., Adhav, S. S., Pandey, R. K., Kunjir, G. M., Lakshmi Kantam, M., Singh, J., Bhattacharya, B., Mandal, A. K.   +7 more
core  

Theoretical Research on the Combustion Characteristics of Ammonium Dinitramide-Based Non-Toxic Aerospace Propellant

Aerospace
Propellants play a crucial role in the propulsion systems of aerospace vehicles, and their combustion characteristics are susceptible to external environmental conditions. This study systematically investigated the impact of various initial conditions on
Jianhui Han, Ming Wen, Yanji Hong, Baosheng Du, Luyun Jiang, Haichao Cui, Gaoping Feng, Junling Song   +7 more
doaj   +1 more source

ADN – The new oxidizer around the corner for an environmentally friendly smokeless propellant [PDF]

Journal of Aerospace Technology and Management, 2009
The search for a smokeless propellant has encouraged scientists and engineers to look for a chlorine-free oxidizer as a substitute for AP (ammonium perchlorate).
Márcio Y. Nagamachi, José Irineu S. Oliveira, Aparecida M. Kawamoto, Rita de Cássia L. Dutra   +3 more
doaj  

Correlation between gas generation and conversion of ammonium dinitramide (ADN) determined at adiabatic self heating

, 2013
S.174.1-174.12The determination of the adiabatic self heating, for example by an Accelerating Rate Calorimeter (ARCTM), is a method to characterize the thermal decomposition of energetic materials.
Pontius, H., Dörich, M., Bohn, M.A.
core   +1 more source

Experimental Study on the Influence of Microwave Energy Pulse Width and Duty Cycle on Evaporation and Ignition Characteristics of ADN-Based Liquid Propellant Droplets

Aerospace
This study investigates the evaporation and ignition characteristics of a single droplet of ammonium dinitramide (ADN)-based liquid propellant utilizing a waveguide resonant cavity device, in conjunction with a high-speed photographic imaging system and ...
Dezhao Yu, Jiale Yao, Jiafu Ma, Yangyang Hou, Shaoyun Zhang, Yusong Yu   +5 more
doaj   +1 more source

The Molecular Surface Structure of Ammonium and Potassium Dinitramide: A Vibrational Sum Frequency Spectroscopy and Quantum Chemical Study.

, 2011
Vibrational sum frequency spectroscopy (VSFS) and quantum chem. modeling were employed to investigate the mol. surface structure of ammonium and potassium dinitramide (ADN and KDN) crystals.
Brinck, Tore, Martin Rahm, Rahm, Martin, Eric Tyrode, Tyrode, Eric, Rahm, Martin,, Johnson, C. Magnus., Tore Brinck, C. Magnus Johnson   +8 more
core   +1 more source