Constant volume combustion properties of Al/Fe2O3/RDX nanocomposite: the effects of its particle size and chemical constituents

Luo, Qingping; Liu, Guixiang; Mingshui, Zhu; Jiang, Xiaohua

doi:10.1016/j.combustflame.2021.111938

Cited by 17 publications

(3 citation statements)

References 14 publications

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“…For example, ammonium perchlorate (AP), as a widely used oxidizing agent in solid rocket propellant, has been added in Al/Fe 2 O 3 EMs to obtain AP/Al/Fe 2 O 3 ternary nano-thermites [ 79 ], showing a lower activation energy of 109.22 kJ/mol and a stronger exothermic peak, with the output of heat of ~1.82 kJ/g, which is 1.3 times that of the simply mixed sample. Several other additives of polytetrafluoroethylene (PTFE) [ 80 ], graphene oxide [ 81 ], hexogen (RDX) [ 82 ] and SiO 2 [ 83 ] have been added into traditional binary Al-based EMs, forming the corresponding ternary tEMs of Al/Bi 2 O 3 /PTFE, Al/CuO/graphene oxide, Al/Fe 2 O 3 /RDX and Al/Fe 2 O 3 /SiO 2 , respectively. The addition of nonmetals (boron, etc.)…”

Section: Classification Of Highly Reactive Thermite Ems (Tems)mentioning

confidence: 99%

Highly Reactive Thermite Energetic Materials: Preparation, Characterization, and Applications: A Review

et al. 2023

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As a promising kind of functional material, highly reactive thermite energetic materials (tEMs) with outstanding reactive activation can release heat quickly at a high reaction rate after low-energy stimulation, which is widely used in sensors, triggers, mining, propellants, demolition, ordnance or weapons, and space technology. Thus, this review aims to provide a holistic view of the recent progress in the development of multifunctional highly reactive tEMs with controllable micro/nano-structures for various engineering applications via different fabricated techniques, including the mechanical mixing method, vapor deposition method, assembly method, sol-gel method, electrospinning method, and so on. The systematic classification of novel structured tEMs in terms of nano-structural superiority and exothermic performance are clarified, based on which, suggestions regarding possible future research directions are proposed. Their potential applications within these rapidly expanding areas are further highlighted. Notably, the prospects or challenges of current works, as well as possible innovative research ideas, are discussed in detail, providing further valuable guidelines for future study.

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Section: Classification Of Highly Reactive Thermite Ems (Tems)mentioning

confidence: 99%

Highly Reactive Thermite Energetic Materials: Preparation, Characterization, and Applications: A Review

et al. 2023

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“…The combustion performance of high-energy explosives has always been a topic of great interest among researchers. As one of the most frequently used explosives in advanced propulsion systems [1,2], 1,3,5-trinitro-1,3,5 triazine (RDX) has the advantages of higher energy, a large amount of gas produced by the reaction, high safety (difficult to ignite at room temperature), low manufacturing cost, and, in particular, the reaction of RDX is also environmentally friendly as it is smokeless, non-toxic, and does not produce corrosive products. In recent years, research on RDX and RDX composites has garnered significant attention in both military and civilian applications [3].…”

Section: Introductionmentioning

confidence: 99%

Preparation of RDX/F2311/Fe2O3/Al Composite Hollow Microspheres by Electrospray and Synergistic Energy Release during Combustion between Components

Zhang,

Jiang,

Yang

et al. 2024

Materials

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Nanothermites and high-energy explosives have significantly improved the performance of high-energy composites and have broad application prospects. Therefore, in this study, RDX/F2311/Fe2O3/Al composite hollow microspheres were successfully prepared utilizing the electrospray method using F2311 as a binder between components. The results show that the combustion time of the composite hollow microspheres is shortened from 2400 ms to 950 ms, the combustion process is more stable, and the energy release is more concentrated. The H50 of the composite hollow microspheres increased from 14.49 cm to 24.57 cm, the explosion percentage decreased from 84% to 72%, and the sensitivity of the composite samples decreased significantly. This is mainly the result of the combination of homogeneous composition and synergistic reactions. The combustion results show that F2311 as a binder affects the tightness of the contact between the components. By adjusting its content, the combustion time and the intensity of the combustion of the composite microspheres can be adjusted, which provides a feasible direction for its practical application.

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“…Достоинствами нанотермитов являются: высокая скорость горения взрывного характера, которая изменяется от сотен метров (насыпная плотность) и до метров в секунду (высокая плотность); низкая газопроизводительность (объем газов менее 0,5 л/кг); высокая восприимчивость к начальному инициирующему импульсу [12][13][14].…”

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МАЛОГАЗОВЫЕ НАНОТЕРМИТЫ И ОТНОСИТЕЛЬНАЯ СИЛА ВЗРЫВА СМЕСИ Аl/MoO3С ФТОРПОЛИМЕРОМ

Попов¹,

Комов²,

Малыхин³

2022

Ползуновский Вестник

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Аннотация. Кратко рассмотрены распространённые и наиболее изученные нанотермитные композиции различного состава и представлены результаты экспериментального сравнения относительной силы взрыва смесей нанопорошков Al/MoO3 с фторполимером. Представлены системы, основными представителями которых являются нанотермитные композиты для пиравтоматики и микроинициаторов. Рассматривается проблема разработки безгазовых (малогазовых), быстро сгорающих пиротехнических составов на основе нанотермитов. В экспериментальной части обсуждается влияние фторполимера Ф-42Л на относительную силу взрыва пиротехнической композиции, основанной на термитной реакции между нанопорошками алюминия (горючее) и оксидом молибдена (окислитель). Было показано, что фторполимер уменьшает относительную силу взрыва нанокомпозита, а определяющей химической реакцией взрывного превращения смеси Al/MoO3/Ф-42Л является реакция Al с фторполимером.

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Constant volume combustion properties of Al/Fe2O3/RDX nanocomposite: the effects of its particle size and chemical constituents

Cited by 17 publications

References 14 publications

Highly Reactive Thermite Energetic Materials: Preparation, Characterization, and Applications: A Review

Highly Reactive Thermite Energetic Materials: Preparation, Characterization, and Applications: A Review

Preparation of RDX/F2311/Fe2O3/Al Composite Hollow Microspheres by Electrospray and Synergistic Energy Release during Combustion between Components

МАЛОГАЗОВЫЕ НАНОТЕРМИТЫ И ОТНОСИТЕЛЬНАЯ СИЛА ВЗРЫВА СМЕСИ Аl/MoO3С ФТОРПОЛИМЕРОМ

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