Articles with "propellant" as a keyword



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Rheokinetic characterization of polyurethane formation in a highly filled composite solid propellant

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Published in 2019 at "Journal of Thermal Analysis and Calorimetry"

DOI: 10.1007/s10973-019-08793-6

Abstract: The cure kinetics of a composite solid propellant premix based on ammonium perchlorate, hydroxyl-terminated polybutadiene (HTPB) and diisocyanate system was investigated using a rheometer. The cross-linking kinetics of HTPB resin in the presence of tolylene… read more here.

Keywords: characterization polyurethane; propellant; polyurethane formation; solid propellant ... See more keywords

Concept and performance study of turbocharged solid propellant ramjet

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Published in 2018 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2018.03.048

Abstract: Abstract This study proposes a turbocharged solid propellant ramjet (TSPR) propulsion system that integrates a turbocharged system consisting of a solid propellant (SP) air turbo rocket (ATR) and the fuel-rich gas generator of a solid… read more here.

Keywords: tspr; propellant; solid propellant; performance ... See more keywords
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Impulse and electric charge characteristics of chemical propellant under pulsed laser irradiation

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Published in 2021 at "Vacuum"

DOI: 10.1016/j.vacuum.2021.110419

Abstract: Abstract To enhance the thrust performance of laser-pulsed plasma thruster (LPPT), we proposed to use chemical propellant as substitute for ordinary PTFE propellant. The discharge characteristics and thrust performance of chemical propellant were analyzed. Meanwhile,… read more here.

Keywords: propellant; laser; ptfe propellant; chemical propellant ... See more keywords

Constructing Zero-Valent Nanotwinned Copper for the Ignition of [BMIM]N(CN)2-H2O2 Green Propellant

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Published in 2025 at "Journal of Materials Chemistry A"

DOI: 10.1039/d5ta01333j

Abstract: Ionic liquid-H2O2 is a green hypergolic propellant system, and the poor self-ignition hinders its application. Herein, the stable zero-valent catalyst Cu nano-particle with twin boundaries (T-Cu) was synthesized. As the... read more here.

Keywords: h2o2 green; constructing zero; propellant; zero valent ... See more keywords

Blood backspatter interaction with propellant gases

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Published in 2021 at "Physics of Fluids"

DOI: 10.1063/5.0045214

Abstract: The theoretical results of the present work reveal a significant interaction of the oncoming vortex ring of propellant muzzle gases with backward blood spatter. It is shown that there is even possibility that a blood… read more here.

Keywords: vortex ring; propellant; blood backspatter; blood ... See more keywords

Investigation on Enhancement of AP/HTPB/Al Composite Solid Propellant Combustion Characteristics via DC Electric Field

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Published in 2024 at "Combustion Science and Technology"

DOI: 10.1080/00102202.2024.2393670

Abstract: ABSTRACT To investigate the influence mechanisms of DC electric fields on the combustion of solid propellants, a numerical model for the combustion characteristics of AP/HTPB/Al composite solid propellant under the DC electric field is established.… read more here.

Keywords: field; combustion; propellant; electric field ... See more keywords
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B/Metal composites’ thermochemical properties and their effect on the performance of an ammonium perchlorate propellant

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Published in 2020 at "Journal of Energetic Materials"

DOI: 10.1080/07370652.2020.1799114

Abstract: ABSTRACT Mainly the purpose of this research is to increase the oxidation efficiency of boron powder as well as to accelerate the decomposition of AP by carrying out the trials of several metals with boron-based… read more here.

Keywords: propellant; metal composites; effect; performance ... See more keywords

A Randomized, Double-Blind Crossover Study of Change in Post-Dose Lung Function with Hydrofluoroolefin-1234ze, a Next-Generation Propellant for Metered Dose Inhalers, in Participants with Asthma.

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Published in 2025 at "Journal of aerosol medicine and pulmonary drug delivery"

DOI: 10.1089/jamp.2024.0061

Abstract: Background: Pressurized metered dose inhalers (pMDIs) currently contain propellants with relatively high global warming potential (GWP), such as hydrofluoroalkane-134a (HFA-134a). Hyrofluoroolefin-1234ze (HFO-1234ze) is a near-zero GWP propellant in development for use in future pMDIs. Methods:… read more here.

Keywords: hfa 134a; propellant; lung function; post dose ... See more keywords

Innovative Drug Development Approach to Address the Transition to Low Global Warming Potential Propellant Using Hydrofluoroalkane-152a, for Triple Combination Pressurized Metered-Dose Inhaler Products Targeting Small Airways

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Published in 2025 at "AAPS PharmSciTech"

DOI: 10.1208/s12249-025-03057-z

Abstract: Recent and emerging environmental policies have boosted the investigation of pressurized metered-dose inhalers (pMDI) that have a minimal impact on climate change. There is a current move away from existing hydrofluorocarbon (HFC)-based propellants, specifically the… read more here.

Keywords: metered dose; propellant; drug; pressurized metered ... See more keywords

Experimental Evaluation of Fracture Models Parameters and its Validation for Naturally Aged Composite Solid Propellant

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Published in 2025 at "Defence Science Journal"

DOI: 10.14429/dsj.20583

Abstract: Parameters for the Fracture models namely the Inherent Flaw Model (IFM), Point Stress Criterion (PSC) and Average Stress Criterion (ASC) were experimentally determined for HTPB-Al-based composite Solid Propellant of three different compositions. A Compact Tension… read more here.

Keywords: solid propellant; fracture; fracture models; composite solid ... See more keywords
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Novel Composite Solid Propellant with High Resistance to Thermo-oxidative Degradation Reactions, Extended Shelf Life, and Superior Combustion Characteristics

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Published in 2021 at "Central European Journal of Energetic Materials"

DOI: 10.22211/cejem/135119

Abstract: Hydroxy-terminated polybutadiene (HTPB) pre-polymer is the main constituent that is responsible for conferring high mechanical properties on composite solid propellants. However, HTPB pre-polymer suffers from oxidative degradation reactions that diminish its mechanical properties and shelf… read more here.

Keywords: composite solid; curing ratio; propellant; life ... See more keywords