Results 161 to 170 of about 1,005,662 (212)

The Aging Studies of the Low HCl Content Composite Rocket Propellant

Propellants, Explosives, Pyrotechnics, 2019
AbstractThis paper presents technological research on the storage time of a composite rocket propellant with a low HCl content in combustion products, based on sodium nitrate. For research were prepared and casted in laboratory scale, a composite rocket propellant based on sodium nitrate and HTPB system, and as the reference sample, the classic ...
Rafał Bogusz
exaly   +2 more sources

Energetic water compositions as rocket propellants

Acta Astronautica, 2021
Abstract New results of experimental and theoretical research of ignition and combustion of energetic water compositions used as environmentally safe (green) propellants for rocket and other internal combustion engines are presented. The theoretical assessment of the thermodynamic effect of water additives to fuels depending on the characteristics of
Igor G. Assovskiy, Genadiy P. Kuznetsov, Georgiy V. Melik-Gaikazov   +2 more
openaire   +1 more source

Nano-composites for rocket solid propellants

Composites Science and Technology, 2005
Aim of this work is the study of different components (binder and aluminum powders) of solid propellants used for rocket propulsion to improve ballistic performance. New propellant formulations have been tested and characterised. Combustion residues were collected by a proprietary method and analyzed both from the morphological and chemical point of ...
MEDA, LUISA MARINA, G. Marra, GALFETTI, LUCIANO, DE LUCA, LUIGI, F. Severini, S. Inchingalo   +5 more
openaire   +2 more sources

Combustion of composite solid rocket propellants.

AIAA Journal, 1969
CONSIDERABLE work has been done on solid rocket ^->< propellants using various fuels (often polymers) and oxidizers. Recently Rastogi and Ouseph have studied the combustion of phenol-f ormaldehy de/NH 4C10 4 system . They observed that the rate of burning decreases as the amount of cross-linking increases in the polymer.
R. P. RASTOGI, B. L. GUPTA
openaire   +1 more source

Burning of Nano-Aluminized Composite Rocket Propellants

Combustion, Explosion and Shock Waves, 2005
Several aluminum nanopowders were examined and compared with the final goal to evaluate their application in solid rocket propulsion. A detailed investigation of pre-burning properties by the Brunauer-Emmet-Teller method, electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy was carried out.
DE LUCA, LUIGI, GALFETTI, LUCIANO, F. Severini, L. Meda, G. Marra, A. Vorozhtsov, V. Sedoi, V. Babuk   +7 more
openaire   +2 more sources

Integrated model of a composite propellant rocket

AIP Conference Proceedings, 2016
The combustion of composite solid propellants was investigated and an available numerical model was improved for taking into account the change of pressure, when the process occurs in a confined environment, as inside a rocket. The pressure increase upon ignition is correctly described by the improved model for both sandwich and dispersed particles ...
openaire   +2 more sources

Intermetallic Compounds as Fuels for Composite Rocket Propellants

47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &amp; Exhibit, 2011
Aluminized composite propellants have long suffered from efficiency and thermal challenges related to production of condensed phase slag droplets during operation. In an effort to mitigate the production of large droplets, a mechanically activated intermetallic forming nickel-aluminum compound was substituted for a portion of a propellant’s aluminum ...
David Reese, Lori Groven, Steven Son, Alex Mukasyan   +3 more
openaire   +1 more source

Bonding of composite propellant in cast-in-case rocket motors.

Journal of Spacecraft and Rockets, 1966
The apparent bond strength of some composite solid-rocket propellants to elastomeric substrates is governed by the propellant cohesive strength. When these propellants are tested (whether by the tensile or peel method), failure is invariably cohesive within the propellant near the interface.
CLARENCE GUSTAVSON, THOMAS W. GREENLEE, AVERY W. ACKLEY   +2 more
openaire   +1 more source

Burning rate of a trimodal composite rocket propellant

Journal of Propulsion and Power, 1990
Some new perceptions in the field of composite propellants are considered. The effects of trimodal oxidizer distribution on the burning rate of composite propellants are considered. It is note that reducing the oxidizer particles in the presence of depressors reduces the burning rate of these propellants. In the formulation of the experimental approach,
openaire   +1 more source