Results 21 to 30 of about 1,712,161 (276)

Evaluating New Liquid Storable Bipropellants: Safety and Performance Assessments

Aerospace, 2022
Conventional storable bipropellants make use of hydrazine and its derivatives as fuels and nitrogen tetroxide as an oxidizer. In recent years, the toxicity character of these chemicals pushed the propulsion community towards “green” alternatives. Several
Stefania Carlotti, Filippo Maggi
doaj   +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, Vikas Khandu Bhosale, Hosung Yoon   +2 more
doaj   +1 more source

Assessment of the Stability of Propellants Modified with Eco-Friendly Plasticizers. [PDF]

Polymers (Basel)
The growing importance of sustainable technologies and environmental safety is promoting the implementation of green chemistry principles in the field of energetic materials.
Cieślak K, Wycech MI, Tomaszewski W.
europepmc   +2 more sources

Hydrogen peroxide – A promising oxidizer for rocket propulsion and its application in solid rocket propellants

FirePhysChem, 2022
This paper discusses the potential use of hydrogen peroxide as oxidizer for solid rocket propulsion. While hydrogen peroxide is a liquid in normal conditions, it may be used in solid rocket motor grains.
Wioleta Kopacz, Adam Okninski, Anna Kasztankiewicz, Paweł Nowakowski, Grzegorz Rarata, Pawel Maksimowski   +5 more
doaj   +1 more source

Successful development of HAN based green propellant

Energetic Materials Frontiers, 2021
Research and development of Hydroxyl Ammonium Nitrate based liquid propellant; SHP-163 is reviewed. Starting from the composition selection of the propellant to the development of 1 ​N thruster of Green Propellant Reaction Control System (GPRCS) project and the successful demonstration test in space is summarized.
Toshiyuki Katsumi, Keiichi Hori
openaire   +2 more sources

Polyurethanes Based on Environmentally Friendly Polyols as a Promising Alternative to HTPB Binder for Composite Propellant Rockets

Proceedings, 2023
Composite propellants used in solid-fuel rockets commonly consists of an oxidizer, the most used being ammonium perchlorate, fuels such as powdered aluminum, compounds that control the burn rate (catalysts or inhibitors), and various other additives [...]
Sorin-Viorel Dolana, Anamaria Zaharia, Tanţa-Verona Iordache, Andrei Sârbu, Celina-Maria Damian, Traian Rotariu, Anita-Laura Chiriac, Ana-Mihaela Gavrilă, Anton Ficai   +8 more
doaj   +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

Impulse mechanical strength improvement of alumina by surface coating

Cailiao gongcheng
To increase the impulse mechanical strength of alumina, the pore structure of alumina was modified by surface coating. It was found that the impulse mechanical strength of alumina samples coated with aluminum chloride increases from 35 MPa to 51 MPa and ...
CHEN Zhiqiang, LUO Yuhong, LIANG Jinghua, LIU Mengran, WANG Qing, DONG Xiaotian   +5 more
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

Initial research on thermal decomposition of 98% concentrated hydrogen peroxide in thruster-like conditions

Engineering Science and Technology, an International Journal, 2022
The current research is focused on investigating the possibility of harnessing the thermal decomposition of highly concentrated Hydrogen Peroxide 98% i.e., utilizing a decomposition process initiated and maintained solely by a temperature source for low ...
Lukasz Mezyk, Zbigniew Gut, Kiran Mohan, Jan Kindracki, Grzegorz Rarata   +4 more
doaj   +1 more source