2023
DOI: 10.1021/acsami.3c10335
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High-Energy Composite Fuels with Improved Combustion Efficiency by Using AlH3 Embedded with Al Particles

Ming-Hui Yu,
RuiXuan Xu,
Wu-Xi Xie
et al.

Abstract: Aluminum hydride (AlH3) has attracted much attention due to its potential to replace aluminum (Al) as a novel energetic material in solid propellants. In this research, ammonium perchlorate (AP) and perfluoropolyether (PFPE) as functionalized coatings and a combination of acoustic resonance and spray drying technology have been employed to prepare AlH3@Al@AP (AHAPs) and AlH3@Al@AP@PFPE (AHAPs-F) energetic composite particles. The formulations of composite propellants and modified AlH3 particles were designed a… Show more

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Cited by 5 publications
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“…Metal additives, particularly aluminum (Al), are commonly used as the primary energy source in advanced energetic and propellent systems to enhance energy density and heat release, while also suppressing oscillating combustion. However, the naturally occurring passive oxide layer on the surface of Al particles presents a challenge due to its high melting point (2327 K), which hinders immediate ignition and complete combustion . Additionally, molten Al particles tend to merge and form liquid droplets on the propellant surface, exacerbating the agglomeration of Al and contributing to a loss phenomenon known as two-phase loss, ultimately reducing the specific impulse. , These unfavorable factors significantly restrict the energy release process and combustion performance of the propellant.…”
Section: Introductionmentioning
confidence: 99%
“…Metal additives, particularly aluminum (Al), are commonly used as the primary energy source in advanced energetic and propellent systems to enhance energy density and heat release, while also suppressing oscillating combustion. However, the naturally occurring passive oxide layer on the surface of Al particles presents a challenge due to its high melting point (2327 K), which hinders immediate ignition and complete combustion . Additionally, molten Al particles tend to merge and form liquid droplets on the propellant surface, exacerbating the agglomeration of Al and contributing to a loss phenomenon known as two-phase loss, ultimately reducing the specific impulse. , These unfavorable factors significantly restrict the energy release process and combustion performance of the propellant.…”
Section: Introductionmentioning
confidence: 99%