Results 11 to 20 of about 1,712,161 (276)

The Stability of novel energetic materials and associated propellants [PDF]

open access: yes, 2010
A study into the degradation of crystalline Hydrazinium Nitroformate (HNF) in isolation has been carried out alongside studies into HNF / polyNIMMO propellant degradation.
Wagstaff, D C.
core   +7 more sources

A whole life assessment of extruded double base propellants

open access: yes, 2013
© Cranfield UniversityThe manufacturing process for solventless extruded double base propellants involves a number of rolling and reworking stages. Throughout these processes a decrease in weight average molecular weight was observed, this was attributed
Tucker, J
core   +7 more sources

Hydroxy-terminated polyether binders for composite rocket propellants [PDF]

open access: yes, 2007
Propellants based on cross-linked Hydroxy Terminated PolyEther (HTPE) binders are being used as alternatives to Hydroxy Terminated PolyButadiene (HTPB) compositions. HTPE propellants have similar mechanical properties to HTPB propellants but they give
Caro, R.
core   +7 more sources

Review of State-of-the-Art Green Monopropellants: For Propulsion Systems Analysts and Designers

open access: yesAerospace, 2021
Current research trends have advanced the use of “green propellants” on a wide scale for spacecraft in various space missions; mainly for environmental sustainability and safety concerns.
Ahmed E. S. Nosseir   +2 more
doaj   +1 more source

Traditional vs. Energetic and Perchlorate vs. “Green”: A Comparative Study of the Choice of Binders and Oxidising Agents

open access: yesMolecules, 2023
The aim of this article is to compare rocket propellants containing a traditional binder (hydroxyl-terminated polybutadiene) and an energetic binder (glycidyl azide polymer), as well as a perchlorate oxidising agent and a “green” one, i.e., ammonium ...
Kinga Lysien   +5 more
doaj   +1 more source

Test Activities on Hybrid Rocket Engines: Combustion Analyses and Green Storable Oxidizers—A Short Review

open access: yesAerospace, 2023
Hybrid rocket engines (HREs) offer a low-cost, reliable, and environmentally friendly solution for both launch and in-space applications. Hybrid propellants have been identified as green thanks to their use of non-toxic, non-carcinogenic oxidizers.
Christian Paravan   +2 more
doaj   +1 more source

The Role of Thrusters in Space Systems [PDF]

open access: yesفناوری 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   +1 more
doaj  

Foamed propellants

open access: yes, 2022
S.156-160Foamed propellants based on polymer bonded nitramines show high conversion rates due to their porous structure. The properties of the material can be varied in a wide range by using different explosive fillers, energetic binders and porous ...
Böhnlein-Mauß, Jutta   +2 more
core   +3 more sources

Green Hypergolic Ionic Liquids: Future Rocket Propellants

open access: yesJournal of Ionic Liquids, 2022
Hydrazine and its derivatives have been used as standard propellants for spacecraft propulsion systems since the 1960s, despite being highly toxic and carcinogenic. The propellant synthesis community has constantly been looking for green alternatives for
Umakant Swami   +2 more
doaj   +1 more source

Recent advances in hypergolic ionic liquids with broad potential for propellant applications

open access: yesFirePhysChem, 2022
As a promising choice of new-generation green propellant fuels, hypergolic ionic liquids (HILs) have attracted a great deal of interest in recent ten years, illustrated by their applications in the field of space science and exploring outer space.
Yunhe Jin   +6 more
doaj   +1 more source

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