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ISSN: 2667-1344

Synthesis and characterization of pyrazole- and imidazole- derived energetic compounds featuring ortho azido/nitro groups

Two novel nitrogen-rich heterocyclic energetic compounds, 5-amino-3-azido-4-nitro-1H-pyrazole (3) and 5,5′-diazido-4,4′-dinitro-1H,1′H-2,2′-biimidazole(6), featuring ortho azido/nitro groups were designed...

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Test and simulation study of the effect of transverse impact stress on the rosette 19-hole gun propellant under low temperature

Studying the stress propagation and damage mechanism for the mechanical environment of the gun bore is an important way to popularize and apply the new propellant. Taking rosette 19-hole gun propellant...

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Recent synthetic efforts towards high energy density materials: How to design high-performance energetic structures?

Energetic material is a very essential company of compounds, widely used in various fields, primarily in the military industry and space technologies. These compounds are unique in that they are capable...

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Experimental observation and energy performance calculations of potential oxidants O4−/0 and O6−/0 clusters

In order to explore novel high-energy and green oxidants, oxygen-rich clusters O4−/0 and O6−/0 were investigated by laser-vaporization source, mass spectrometry and theoretical calculations. Most of...

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On prediction of melting points without computer simulation: A focus on energetic molecular crystals

•Two models for prediction of melting points of molecular crystals are developed.•Models 1and 2 provide RMSE ≥ 54 and 57 °C, respectively.•Model 2 does not include any predictable values, only tabulated...

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5,7-diamine-2-nitro-1,2,4-triazolo[1,5-a]-1,3,5-triazine (ANTT): A nitrogen-rich compound suitable for gas generators

For the development of safe, non-toxic and environmentally friendly gas generators, a nitrogen-rich compound 5,7-diamine-2-nitro-1,2,4-triazolo[1,5-a]-1,3,5-triazine (ANTT) was synthesized from 3,5-diamine-1,2,4-triazole...

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Nano BaSO4 prepared by microreactor and its effect on thermal decomposition of some energetics

Barium sulfate has been widely used in different fields due to its excellent physical and chemical properties, but its application in solid propellants has not yet been explored. In this work, novel...

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Energetic complexes as promoters for the green hypergolic bipropellant of EIL-H2O2 combinations

In this work, six energetic complexes were prepared and used as promoters for the hypergolic reaction of 1-ethyl-3-methylimidazolium cyanoborohydride [EMIM][BH3CN] and 90% H2O2. The structures of these...

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Atomic insight into the thermobaric effect of aluminized explosives

•The atomic insight into the thermobaric effect was firstly presented.•It was found that whole thermobaric explosion of the RDX-Al system can be simplified as the sum of the RDX decomposition and the...

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Failure mode analysis of electronic detonator under high overload condition

Under different overload conditions, the split Hopkins method was used to test the high overload performance of the electronic detonator and the failure status of each electronic detonator component...

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Recent Advances in Hypergolic Ionic Liquids with Broad Potential for Propellant Applications

As a promising choice of new-generation green propellant fuels, hypergolic ionic liquids (HILs) have attracted a great deal of interest in recent ten years, illustrated by their applications in the...

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Molecular dynamic simulations and experimental study on pBAMO-b-GAP copolymer/energetic plasticizer mixed systems

In order to investigate the effects of plasticizers on the binding energy, solubility parameter and mechanical properties of pBAMO-b-GAP copolymer (the copolymer of 3,3′-bis(azidomethy) oxetane and...

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Expandable graphite effect on solid fuel and propellant combustion

This paper presents an investigation on a novel method for manipulating and enhancing the burning of solid fuels and propellants by expandable graphite additive. Expandable graphite (EG) is a form of...

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Burn rate of a novel boron-AN-water green solid propellant

A novel composition of green solid rocket propellant has been suggested and examined. Boron powder was chosen to serve as fuel, for its very high energetic potential, which exceeds that of other common...

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Effect of spherical Al-Mg-Zr on the combustion characteristics of composite propellants

In this work, spherical Al-Mg-Zr alloy with intensive heat release were characterized and compared to neat Al powders. The morphology, element distribution and thermal performance were characterized...

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Molecular simulation study on the protective mechanism of three kinds of HTPB propellant antioxidants

To investigate the protection mechanism and performance of N-phenyl-1-naphthalenamine (antioxidant A), N-phenyl-2-naphthalene (antioxidant D), and N, N'-diphenyl-1,4-phenylenediamine (antioxidant H)...

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Effect of fast-burning compound ACP and catalyst on the combustion performance of Al/Mg-based fuel-rich HTPB propellants

In order to solve the problem of weak injection of fuel-rich propellant and to enhance its burning rate, the combustion behaviors of Al/Mg-based fuel-rich HTPB propellants with 40wt% metal content were...

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Combustion characteristics of cross-linked fluorinated polymer supported aluminum/oxidizer microsphere in HTPB propellant

Combustion behaviors of propellant depend heavily on the architecture of the pocket bounded by coarse AP particles. In order to achieve a better control of the meso-scale architecture of the pocket,...

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

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...

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Hydrogen peroxide – A promising oxidizer for rocket propulsion and its application in solid rocket propellants

This paper discusses the potential use of hydrogen peroxide as oxidizer for solid rocket propulsion. While hydrogen peroxide is a liquid in normal conditions, it may be used in solid rocket motor grains....

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Influence of storage time before casting on viscosities and mechanical properties of AP/HTPB/Al solid composite propellants

Solid rocket motors can contain different quantity of solid composite propellant. In the Brazilian Aerospace Program, a considerable difference of the propellant masses used in each rocket motor is...

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Experimental Investigation on Flow Boiling Heat Transfer Characteristics of Endothermic Hydrocarbon Fuel and its Visualization at High-Temperature Conditions

The endothermic hydrocarbon fuel is used as a coolant to realize active cooling for the high-heat-flux components of air-breathing hypersonic vehicles. Because of its complex composition and severe...

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Phase transition and thermal expansion of molecular perovskite energetic crystal (C6N2H14)(NH4)(ClO4)3 (DAP-4)

Research on the structural responses to thermal stimuli for crystalline energetic materials is crucial to their practical applications. DAP-4 is a metal-free molecular perovskite high-energetic material...

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Recent progresses in material fabrication and modification by cold plasma technique

Carbon-based materials, metal oxides and metal nanoparticles have been widely used in propellants, explosives and pyrotechnics. Cold plasma technique has been developed for material fabrication and...

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Review on the regression rate-improvement techniques and mechanical performance of hybrid rocket fuels

Human spaceflight, space tourism, and the launch of microsatellites are all expected to grow in the future. In fact, with the recent increase of the satellite market, almost 1000 smallsats per year...

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