Results 41 to 50 of about 668 (194)
Additive Manufacturing of Ceramic Materials: a Performance Comparison of Catalysts for Monopropellant Thrusters [PDF]
Switchgrass ( L.) is a promising herbaceous energy crop, but further gains in biomass yield and quality must be achieved to enable a viable bioenergy industry.
Aruna Nandety +7 more
core +2 more sources
Achieving Balanced Energetics through Cocrystallization [PDF]
Achieving energetic materials with a balanced ratio of oxidant to fuel is a challenge that has been difficult to meet through molecular synthesis. The alternative approach, composite formulation, fails to achieve intimate association of the components to
Bellas, Michael K., Matzger, Adam J.
core +2 more sources
Development of NMP‐001, A Nitromethane‐Based Green Propellant
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 +3 more
wiley +1 more source
Thermal Ignition of ADN‐Based Propellants
Abstract Ammonium dinitramide (ADN, NH4+ N(NO2)2−) based monopropellants are extremely promising as hydrazine replacement. Thermal igniters are attractive for ADN thrusters as they allow a more prompt ignition and may be better suited for larger engines (100‐500 N) compared to the currently used preheated catalysts.
Michele Negri +2 more
wiley +1 more source
ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen +11 more
wiley +1 more source
Click and cross: A novel azide terminated ethylene oxide‐tetrahydrofuran copolymer with urethane segments (ATUPET) has been prepared through a facile method. The elastomers based on ATUPET exhibited improved mechanical properties and satisfactory thermal stability, which indicated that this might be a promising polymeric binder for future propellant ...
Qian Zhang +6 more
wiley +1 more source
Exploration of the application of ADN in composite explosives
Ammonium dinitramide (ADN) is a high-performance, novel green oxidizer that is commonly used in solid propellants. It offers advantages such as a large oxygen balance and significant gas release, making it a promising candidate for use as an oxidizing ...
Wenxiang Bian +5 more
doaj +1 more source
ADN – The new oxidizer around the corner for an environmentally friendly smokeless propellant [PDF]
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 +3 more
doaj
From Lampoldshausen to Space: DLR Spin-off InSpacePropulsion Technologies and the Development Status of Green Propellant Thrusters Based on H2O2 and N2O [PDF]
The German Aerospace Center’s Institute of Space Propulsion in Lampoldshausen has more than a decade of experience in green propellant research and green propulsion hardware development.
Braune, Luca +8 more
core +1 more source
ABSTRACT The aerospace industry is continually seeking materials that offer higher performance and lower environmental impact. In chemical propulsion, ammonium dinitramide (ADN) represents a significant advance in this direction as a potential replacement for ammonium perchlorate in solid propellant formulations.
Josiane R. C. Silva +6 more
wiley +1 more source

