Results 21 to 30 of about 317 (165)

Effect of micro- and nano-CuO on the thermal decomposition kinetics of high-performance aluminized composite solid propellants containing complex metal hydrides

open access: yesFirePhysChem, 2022
In the present work, an attempt has been made to unveil the effect of micro- and nano-particles of copper oxide (µCuO and nCuO) on the thermal decomposition of composite solid propellants (CSPs) based on ammonium perchlorate, hydroxyl terminated ...
Fateh Chalghoum   +3 more
doaj   +1 more source

Effect of hexanitroethane (HNE) and hydrazinium nitroformate (HNF) on energy characteristics of composite solid propellants

open access: yesFirePhysChem, 2021
This work deals with energy performance calculate results of new solid composite propellants based on Hexanitroethane (HNE) and Hydrazinium nitroformate (HNF).
Li-nan Zhang   +5 more
doaj   +1 more source

Amine-AlH<sub>3</sub> Adducts as Energetic Materials for a New Generation of Solid Fuels. [PDF]

open access: yesChemistry
New amine‐AlH₃ adducts offer a more environmentally friendly, high‐energy alternative to conventional rocket propellants, and exhibit ultra‐fast ignition. They can be synthesized by mechanochemical method under hydrogen pressure starting from aluminum metal directly or by wet chemical processes with AlH3.
Liu X   +4 more
europepmc   +2 more sources

Calculation for Primary Combustion Characteristics of Boron-Based Fuel-Rich Propellant Based on BP Neural Network

open access: yesJournal of Combustion, 2012
A practical scheme for selecting characterization parameters of boron-based fuel-rich propellant formulation was put forward; a calculation model for primary combustion characteristics of boron-based fuel-rich propellant based on backpropagation neural ...
Wu Wan'e, Zhu Zuoming
doaj   +1 more source

Compressive mechanical properties of HTPB propellant at low temperatures and high strain rates

open access: yesResults in Physics, 2017
To study the compressive mechanical properties of the hydroxyl-terminated polybutadiene (HTPB) propellant at high strain rates (700–1900/s) and low temperatures (−50 °C to 25 °C), we conducted a dynamic mechanical experiment using cylindrical specimens ...
Xiangdong Chen   +5 more
doaj   +1 more source

Experimental study on thermal decomposition kinetics of natural ageing AP/HTPB base bleed composite propellant

open access: yesDefence Technology, 2018
The kinetics of the thermal decomposition for a naturally ageing ammonium perchlorate (AP) and hydroxyl-terminated-polybutadiene (HTPB) base bleed composite propellant were investigated using a differential scanning calorimetry (DSC).
Ling-ke Zhang, Xiang-yang Zheng
doaj   +1 more source

Biaxial Tensile Mechanical Properties of HTPB Solid Propellant

open access: yesInternational Journal of Aerospace Engineering, 2023
The purpose of this work is to study the effects of different loading rate ratios and loading speeds on the biaxial tension of hydroxyl-terminated polybutadiene (HTPB) solid propellant. A proper kind of biaxial tensile specimen with which the stresses in
Li Jin   +3 more
doaj   +1 more source

Instantaneous Modulus Test of Solid Propellant and the Impact on the Structural Integrity of the Charge [PDF]

open access: yesHangkong bingqi
Hydroxyl-terminated polybutadiene (HTPB) propellant is investigated in this study. At three initial tensile strain rates of 100 %/s, 50 %/s and 12 %/s, the propellant relaxation modulus tests are carried out, and the relaxation modulus curves of the ...
Wang Yibo, Tang Qi, Dong Meng, Jiang Pengchen
doaj   +1 more source

Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos

open access: yesQuímica Nova, 2013
The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for
Roberta Jachura Rocha   +4 more
doaj   +1 more source

Mechanical Properties of Composite Solid Propellant with Initial Defects

open access: yesJournal of Aeronautical Materials, 2018
To study the mechanical properties of composite solid propellant with initial interface defects, the mesoscopic structure model for HTPB (hydroxyl-terminated polybutadiene) propellant was established based on the periodicity assumption and molecular ...
FENG Tao   +4 more
doaj   +1 more source

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