Results 21 to 30 of about 873 (194)
Defence Technology, 2023 Ammonium dinitramide (ADN) is considered as a potential substitute for ammonium perchlorate in energetic materials due to its high density, positive oxygen balance, and halogen-free characteristics.
Fu-yao Chen +10 more
doaj +1 more source
Implementing life cycle sustainability assessment for improved space mission design
Integrated Environmental Assessment and Management, Volume 19, Issue 4, Page 1002-1022, July 2023., 2023 Abstract Within the space sector, the application of Environmental Life Cycle Assessment (E‐LCA) is beginning to emerge as a credible and compelling method for scientifically quantifying environmental impacts of space missions. However, E‐LCA does not fully align with the concept of triple‐bottom‐line sustainability, while the combination of all three ...
Andrew R. Wilson +3 more
wiley +1 more source
Reactor Structure for the Decomposition of ADN-Based Monopropellant
Aerospace, 2023 Ammonia dinitramide (ADN)-based liquid monopropellants are considered to be environmentally friendly alternatives to the toxic and carcinogenic hydrazine-based propellants. Hence, Space Solutions Co., Ltd.
Wonjae Yoon +2 more
doaj +1 more source
Progress in Predicting Ionic Cocrystal Formation: The Case of Ammonium Nitrate
Chemistry – A European Journal, Volume 29, Issue 27, May 11, 2023., 2023 Cocrystal design strategies are rapidly evolving to enhance predictive capabilities and improve the efficiency of coformer screening. However, many of the molecular descriptors associated with successful cocrystallization are ambiguous for salts, complicating coformer selection when designing ionic cocrystals.
Andrew J. Bennett, Adam J. Matzger
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 +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 +2 more
wiley +1 more source
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 +5 more
wiley +1 more source
Thermal Decomposition of Ammonium Dinitramide (ADN) as Green Energy Source for Space Propulsion
Aerospace, 2023 The thermal decomposition of an ammonium dinitramide-based energetic compound was conducted for the first time using a dispersive inductively coupled plasma mass spectrometer, DTA-TG analysis, and pyrolysis at a constant temperature. A liquid droplet was
Zakaria Harimech +4 more
doaj +1 more source
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 +8 more
wiley +1 more source
ChemistrySelect, Volume 6, Issue 33, Page 8581-8586, September 7, 2021., 2021 Various oxamide precursors were synthesized and further converted into trinitroethyl ester, nitrocarbamate and nitrate of oxamides and nitroxamides. All compounds were fully characterized including their thermal and sensitivity stability. Furthermore, the energetic properties were calculated by using Gaussian program package in combination with the ...
Thomas M. Klapötke +3 more
wiley +1 more source