Results 21 to 30 of about 196 (151)

Anti‐hygroscopicity technologies for ammonium dinitramide: A review**

Propellants, Explosives, Pyrotechnics, Volume 48, Issue 5, May 2023., 2023
Abstract Valuable propellants have the characteristics of high impulse, low pollution, and strong stability, and oxidizers play a substantial role in determining the performance of propellants. Ammonium dinitramide (ADN) is a relatively promising oxidizer due to its high‐energy and chlorine‐free characteristics.
Shichao Tian, Yinglei Wang, Xinjian Chen, Dongdong Hu, Yifei Hu, Shuai Zheng, Zhiyong Zhou, Chuan Xiao, Zhongqi Ren   +8 more
wiley   +1 more source

Combustion Wave Structure of the Ammonium Dinitramide‐Based Ionic Liquid Propellant

Propellants, Explosives, Pyrotechnics, Volume 48, Issue 2, February 2023., 2023
Abstract The ammonium dinitramide‐based ionic liquid propellant (ADN‐based ILP), which is a mixture of ADN, monomethylamine nitrate (MMAN), and urea, is a low toxic monopropellant with a higher performance than that of hydrazine. To clarify the combustion wave structure of ADN‐based ILP, which has low volatility, we focused on the relationship between ...
Yuichiro Ide, Yu‐ichiro Izato, Mitsuo Koshi, Atsumi Miyake, Hiroto Habu, Shinichiro Tokudome   +5 more
wiley   +1 more source

ADN Solid Propellants with High Burning Rates as Booster Material for Hypersonic Applications

Propellants, Explosives, Pyrotechnics, Volume 47, Issue 7, July 2022., 2022
Abstract RAM‐ and SCRAM‐Jet engines can not generate static thrust and only work at high speeds. This starting velocity of the motor v0 is usually generated by carrier rockets or boosters, which mostly use solid propellants based on ammonium perchlorate (AP) and hydroxyl‐terminated polybutadiene (HTPB).
Stefan Sims, Sebastian Fischer, Claudio Tagliabue   +2 more
wiley   +1 more source

4‐Amino‐1‐Butyl‐1,2,4‐Triazolium Dinitramide – Synthesis, Characterization and Combustion of a Low‐Temperature Dinitramide‐Based Energetic Ionic Liquid (EIL)

Propellants, Explosives, Pyrotechnics, Volume 47, Issue 7, July 2022., 2022
Abstract Salts being liquid below 100 °C are defined as ionic liquids. Due to their unique properties, they are attracting increasing interest and are also being investigated in the field of energetic materials. Combining nitrogen‐rich cations and oxygen‐rich anions, it is possible to obtain energetic ionic liquids (EILs).
Uwe Schaller, Johannes Lang, Volker Gettwert, Jürgen Hürttlen, Volker Weiser, Thomas Keicher   +5 more
wiley   +1 more source

Thermal Decomposition, Ignition Process and Combustion Behavior of Nitrate Ester Plasticized Polyether Propellant at 0.1–3.0 MPa

International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
Nitrate ester plasticized polyether (NEPE) propellant is widely used in solid rocket motors, having both good mechanical properties and high specific impulse. However, its ignition and combustion process are complex and need to be better understood.
Chengyin Tu, Yaya Feng, Zhigang Ling, Xiong Chen, Changsheng Zhou, Yingkun Li, Weixuan Li, Wenxiang Cai, Erkan Kayacan   +8 more
wiley   +1 more source

Development of bimetallic spinel catalysts for low-temperature decomposition of ammonium dinitramide monopropellants

Defence Technology, 2023
Ammonium dinitramide (ADN) based liquid monopropellants have been identified as environmentally benign substitutes for hydrazine monopropellant. However, new catalysts are to be developed for making ADN monopropellants cold-start capable.
C. Shamjitha, Anuj A. Vargeese
doaj   +1 more source

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

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

Thermal Behavior and Micro Structure of TKX‐50

Propellants, Explosives, Pyrotechnics, Volume 46, Issue 2, Page 262-266, February 2021., 2021
Abstract The thermal behaviour of TKX‐50 was reinvestigated in an extended temperature range by means of temperature resolved X‐ray diffraction. TKX‐50, synthesized at the Fraunhofer ICT, was identified using Rietveld‐analysis and reference data from the CCDC.
Michael Herrmann, Ulrich Förter‐Barth
wiley   +1 more source

Advances in phase stabilization techniques of AN using KDN and other chemical compounds for preparing green oxidizers

Defence Technology, 2019
Research and development of green oxidizers and green fuels as a possible replacement for ammonium perchlorate (NH4ClO4, AP) and hydrazine (N2H4) respectively has been increased considerably in the recent years. AP and hydrazine are the oxidizer and fuel
Pratim Kumar
doaj   +1 more source