Results 31 to 40 of about 236 (166)

Melt Crystallization of Ammonium Dinitramide (ADN) Investigated by Means of X‐ray Diffraction

Chemie Ingenieur Technik, Volume 93, Issue 8, Page 1295-1299, August 2021., 2021
In situ X‐ray diffraction experiments give insight into melt‐crystallization mechanisms of ammonium dinitramide (ADN). The quality of the raw products, parameters of prilling processes, and, e.g., seeding additives shall be used for tailoring properties of ADN prills for applications in solid rocket propellants. Abstract Ammonium dinitramide (ADN) is a
Michael Herrmann, Ulrich Förter‐Barth, Thomas Heintz   +2 more
wiley   +1 more source

Fabrication of alginate-based microspheres with cellular structure for tuning ammonium dinitramide performance

Defence Technology, 2023
Recently, an emerging category green of energetic material ammonium dinitramide (ADN) has exhibited promising application in propellants due to its outstanding merits in energy release and environmental friendliness.
Dun-ju Wang, Xu Zhou, Yao-feng Mao, Xin Wang, Ye-ming Huang, Rui-hao Wang, Da-wei Zheng   +6 more
doaj   +1 more source

The Electrolysis of Ammonium Dinitramide in Dimethyl Sulfoxide

Propellants, Explosives, Pyrotechnics, 2020
AbstractThis work investigated the electrolysis of ammonium dinitramide (ADN: NH4N(NO2)2) in dimethyl sulfoxide (DMSO). Various fundamental electrolysis properties of ADN were assessed based on an electrochemical study and the associated mechanisms were examined based on a quantum chemical approach.
Yu‐ichiro Izato, Kazuki Matsushita, Kento Shiota, Atsumi Miyake   +3 more
openaire   +1 more source

Modelagem da combustão da dinitramida de amônio por simulação computacional Ammonium dinitramide combustion modeling by computational simulation

Química Nova, 2009
In this work, the combustion process of ammonium dinitramide, ADN, has been modeled in two different situations: decomposition in open environment, with abundant air and decomposition in a rocket motor internal environmental conditions.
Rene Francisco Boschi Gonçalves, José Atílio Fritz Fidel Rocco, Koshun Iha, Francisco Bolivar Correto Machado   +3 more
doaj   +1 more source

Synthesis of Ammonium Dinitramide by Nitration of Potassium and Ammonium Sulfamate. The Effect of Sulfamate Conterion on ADN Purity [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2008
Nitration of potassium sulphamate was carried out using a mixture of sulphuric and nitric acid at -30 °C. The reaction time was optimized at the mole ratio of sulphuric to nitric acid of (1:3.5).
Gholam Hossein Nazeri, Ramin Mastour, Mohammad Fayaznia, Parviz Keyghobadi   +3 more
doaj  

Experiments and simulations on interactions between 2,3-bis(hydroxymethyl)-2,3-dinitro-1,4-butanediol tetranitrate (DNTN) with some energetic components and inert materials

FirePhysChem, 2021
In order to survey the application prospects of 2,3-bis(hydroxymethyl)-2,3-dinitro-1,4-butanediol tetranitrate (DNTN, NEST-1, SMX) in high - energy solid rocket propellants and explosives, the interactionsbetween DNTN with some energetic components and ...
Weiqiang Pang, Ke Wang, Luigi T. DeLuca, Djalal Trache, Xuezhong Fan, Junqiang Li, Huan Li   +6 more
doaj   +1 more source

The Role of Thrusters in Space Systems [PDF]

فناوری در مهندسی هوافضا, 2020
Spacecrafts, such as artificial satellites and space probes have small rockets called thrusters for orbital maneuvering, and satellite attitude control. These thrusters produce thrust by exhausting gases from their nozzles.
Sajjad Hosseinzadeh alqoo, Mohammad Ali Dehnavi   +1 more
doaj  

An overview on properties, thermal decomposition, and combustion behavior of ADN and ADN based solid propellants

Defence Technology, 2018
Ammonium dinitramide [NH4N(NO2)2, ADN] is considered as a possible replacement for ammonium perchlorate (AP) in nearly all kind of solid rocket propulsions in the coming future. The reason to use ADN instead of AP in solid rocket propulsion is because of
Pratim Kumar
doaj   +1 more source

Development of NMP‐001, A Nitromethane‐Based Green Propellant

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 8, Page 1269-1276, August 2026.
ABSTRACT This paper discusses the development of a model monopropellant that is aimed at exploring the applicability of nitromethane‐based propellants as an alternative to hydrazine. This approach addresses the challenges faced by HAN‐, ADN‐based propulsion by being more cost‐effective while providing similar performance figures.
Maxim Kurilov, Joshua Haase, Christoph U. Kirchberger, Stefan Schlechtirem   +3 more
wiley   +1 more source

Effects of Different Initial Conditions on Combustion Process of Ammonium Dinitramide-Based Energetic Propellant in Straight Nozzle

Aerospace
As a new type of green propellant, ammonium dinitramide (ADN)-based energetic propellants have wide application value and development potential in the field of space propulsion. This paper delves into the intricate impact of varying initial temperatures,
Luyun Jiang, Chentao Mao, Jianhui Han, Haichao Cui, Baosheng Du, Yongzan Zheng, Jifei Ye, Yanji Hong   +7 more
doaj   +1 more source