Results 21 to 30 of about 410 (183)

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

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

Modeling and rheology of HTPB based composite solid propellants

open access: yesPolymer Composites, 1998
AbstractThe propellant with the minimum viscosity required for a defect‐free casting can be obtained by proper selection of the size and fractions of solid components leading to maximum packing density. Furnas' model was used to predict the particulate composition for the maximum packing density.
Erisken, C   +4 more
openaire   +2 more sources

Research on the Aging Properties of HTPB Propellant under Vacuum

open access: yesJournal of Physics: Conference Series, 2023
Abstract The space environment has high vacuum, rapid temperature alternations and other extreme conditions, which can affect the energy, ignition rate and ignition performance of solid propellants in the space environment. In order to obtain the space aging performance of HTPB propellant, this paper investigates the aging performance of
Yuqing Tang   +3 more
openaire   +1 more source

Design of Propellant Composite Thermodynamic Properties Using Rocket Propulsion Analysis (RPA) Software

open access: yesReaktor, 2022
Rocket Propulsion Analysis (RPA) is software for predicting the performance of a rocket engine. It is usually used in conceptual and preliminary design.
Anita Pinalia   +4 more
doaj   +1 more source

Modeling of diffusion and premixed flame of AP/HTPB laminate propellant [PDF]

open access: yesProgress in Propulsion Physics, 2009
Composite propellants feature a diusion §ame. The size of oxidizer particlesleveragesomecombustionproperties(mainly,burningrateand pressure sensitivity) along with §ame structure. Macroscopic combus- tion features are strictly related to those events occurringinside the gas phase and close to the burning surface.
MAGGI, FILIPPO   +4 more
openaire   +3 more sources

Numerical simulation of cook-off characteristics for AP/HTPB

open access: yesDefence Technology, 2018
The present study is devoted to researching the thermal security problems of large-scale solid rocket motor with Ammonium perchlorate/Hydroxyl-terminated polybutadiene (AP/HTPB). A two-dimensional axisymmetric model for the cook-off of solid rocket motor
Qing Ye, Yong-gang Yu
doaj   +1 more source

Architecting nano‐Al/HMX/CuO energetic micro‐units unlocks superior interface and highly efficient combustion

open access: yesInfoMat, EarlyView.
Improving the dispersion of nano‐aluminum is of great importance in explosives and propellants. The spherical Al/HMX/CuO energetic micro‐units were prepared using microchannel technology, which significantly improved the uniformity and dispersion of nano‐Al. It also enhanced the mass and heat transfer efficiency between the fuel and oxidizer components,
Gazi Hao   +12 more
wiley   +1 more source

Influence of time on bond characteristics between extruded PVC tube and cast HTPB/IPDI rocket propellant [PDF]

open access: yesScientific Technical Review, 2017
This paper is dealing about the possibility of using thermoplastic material as an inhibitor for solid composite propellant in a long period of time. A basic point in this consideration is an analysis of bond characteristics between the extruded PVC tube ...
Radulović Jovan, Milojković Aleksandar
doaj  

Preliminary Study on Characteristics of NC/HTPB-Based High-Energy Gun Propellants

open access: yesChemEngineering, 2022
This study mainly explored the characteristics of NC/HTPB-based high-energy gun propellants with RDX, CL-20 or TKX-50 by experimental method. Three series of test samples were prepared referring to the formulation of M1 single-base gun propellant (M1 SBP)
Yi-Hsien Lin   +4 more
doaj   +1 more source

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