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ISSN: 2667-1344

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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Hybrid rocket propulsion technology for space transportation revisited - propellant solutions and challenges

This paper presents the status of developments worldwide regarding use of hybrid rocket motors for space transportation. Historical roots are presented and reasons for revisiting hybrid technology after...

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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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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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Ignition and combustion of metal fuels under microgravity: A short review

Metal fuels have a high potential for applications in space propulsion owing to their superior energy density and distinct combustion characteristics. Therefore, research into the combustion properties...

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Synthesis of explosive peroxides using unrecognised explosive precursors - percarbonates and perborates

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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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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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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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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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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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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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Development of 200 N-class throttleable hybrid rocket motor for lunar module application

In this study, ground tests of a lab-scale hybrid rocket motor were conducted to verify the feasibility of the hybrid propulsion system for lunar lander application. The primary goal is to assess the...

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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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Flow of nitrous oxide in a venturi tube under conditions of a hybrid rocket motor

A Venturi tube is typically used as the flow control element of hybrid rocket motors (HRMs) for the precise control of the flow of a liquid oxidizer, e.g., nitrous oxide, which can efficiently realize...

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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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Massive preparation and characteristics of submicron dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate (TKX-50)

Image, graphical abstractSubmicron TKX-50 with average particle size of 120 nm was massively prepared by low-temperature ball milling technique. The prepared TKX-50 was spherical-like with no change...

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Friction sensitivity of nitramine energetic materials: a prediction based on genetic function approximation

•Prediction of friction sensitivity of nitramine energetic materials is reported.•A powerful regression method, namely, genetic function approximation is used.•The wide set of molecules is treated obtaining...

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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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Continuous flow resonance acoustic mixing technology: a novel and efficient strategy for preparation of nano energetic materials

Recently, microfluidic technology has been widely applied to the preparation of nano-energetic materials. The mixing efficiency of fluid is one of the significant factors which could affect the particle...

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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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Experimental investigation of the axial oxidizer injectors geometry on a 1-kN paraffin-fueled hybrid rocket motor

The showerhead is the most common type of injector used in hybrid rocket motors due to its design and manufacture simplicity. The main drawback of the showerheads (SH) is the relatively low performance...

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