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ISSN: 2666-6472

Sandwich-like interfacial structured polydopamine (PDA)/Wax/PDA: A novel design for simultaneously improving the safety and mechanical properties of highly explosive-filled polymer composites

High melting point paraffin wax (HPW) is a novel desensitizer that has the potential to achieve low sensitivity of energetic crystals, such as 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX). However,...

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An unusual reaction of 1,1-diamino-2-nitro-2-(1H-triazol-5-yl)ethene and hydrazine: The synthesis of a dihydrotetrazine bridged energetic compound

The exploration of energetic derivatives of 1,1-diamino-2,2-dinitroethylene (FOX-7) is a feasible strategy for attaining high-performance energetic materials. Of all the extant types of energetic derivatives,...

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Numerical simulations of trajectories of shock wave triple points in near-ground explosions of TNT charges

To accurately predict the locations and trajectories of shock wave triple points in near-ground explosions, this study determined the propagation law of shock waves after the initiation of a detonator...

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Decreasing the hygroscopicity of ammonium dinitramide (ADN) through cocrystallization

To decrease the hygroscopicity of ADN—a new energetic oxidizer, this study developed a new cocrystal composed of ADN and 18C6 (18-crown-6) at a 1:1 ​M ratio through cocrystallization using the solvent...

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Development of an infrared laser absorption sensor for non-intrusive gas temperature measurements

Energetic materials have extremely high volumetric and specific energy densities, making them attractive and important in combustion systems. To improve their combustion performance, reliable temperature...

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A heat-resistant and insensitive energetic material based on the pyrazolo-triazine framework

One of the major challenges in the field of energetic materials is to develop explosive molecules with high detonation performances and low mechanical sensitivity. In this work, a heat-resistant and...

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Computational assessment of nitrogen-enriched, stable and insensitive tris(1,2,4,5-tetrazin-3-yl)amine building block for energetic applications

In this work, we report an approach for designing a series of energetic compounds derived from nitrogen-rich tris(1,2,4,5-tetrazin-3-yl)amine backbone. Based on available synthetic method, nitrogen...

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Chemical interplay between components in overall thermolysis of CL-20/N2O revealed by ReaxFF molecular dynamics simulations

Understanding of the interplay reactions between components in CL-20 bicomponent crystals is fundamental for synthesis and applications of new CL-20 cocrystals and host-guest materials. This paper reports...

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An ultrafast temperature response analysis of a MEMS-based igniter using the finite-element method

This study reports the simulation and experiments of a MEMS-based igniter for a semiconductor bridge (SCB), which is fabricated using complementary metal oxide semiconductor technology. The finite-element...

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Synthesis, characterization, and crystal structure of 2-oxo-5-nitro-3-(5-nitroimino-1,3,4-oxadiazole-2-yl)-pyrazine

A novel and green energetic compound, 2-oxo-5-nitro-3-(5-nitroimino-1,3,4-oxadiazole-2-yl)-pyrazine, was designed and prepared in this study. It was identified and characterized using X-ray single-crystal...

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Trigger linkage mechanism: Two or multiple steps initiate the spontaneous decay of energetic materials

The trigger linkage mechanism is usually employed to describe the spontaneous decay of energetic materials (EMs) when they are sufficiently stimulated. Based on this mechanism, large numbers of correlations...

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High-quality and homogeneous HMX-based aluminized explosives using droplet microfluidic technology

The aggregation of nano-aluminum powder seriously hinders the energy release of aluminized explosives. This study developed a strategy of using the droplet microfluidic technology to prepare HMX/15 ​wt%...

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Thermal interactions between hybrid HMX/ANPyO cocrystals and commonly used propellant ingredients

Nitramine-based composite propellants (N-CPs) are receiving significant attention in the field of solid rocket propulsion. Cyclotetramethylene tetranitramine (HMX)/2,6-diamino-3,5-dinitropyridine-1-oxide...

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Catalytic properties of CuO–Cr2O3–PbO ternary nanocomposites favorable for the pyrolysis of ammonium perchlorate

In this study, CuO–Cr2O3–PbO ternary nanocomposites (TNCs) with different atomic ratios of Cu:Cr:Pb (5:2:8, 5:4:6, 5:6:4, 5:8:2) were synthesized by means of efficient mechanical milling. As confirmed...

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Potential energetic salts of 5,5′-methylenedi(4H-1,2,4-triazole-3,4-diamine) cation: Synthesis, characterization and detonation performance

1,2,3-Triazole and 1,2,4-triazole have been vigorously used in energetic materials research. Among these two, 1,2,4-triazole has been a widely used backbone in designing new energetic materials with...

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Outfield overpressure characteristics and flame behavior of fuel vapor explosion in tubes with one weakly covered end

An experiment system of tubes with one weakly covered end was established, and the outfield characteristics of fuel vapor explosions were studied through experiments. The results are as follows. After...

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Evaporating characteristics of diesel sprays under split-injection condition with a negative dwell time

This paper investigates the effects of the split-injection strategy with a negative dwell time using a multi-hole diesel injector under evaporating conditions. To compare with negative dwell conditions,...

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Unexpected reactions of 7-amino-8-nitrotetrazolo[1,5-c]pyrimidine

The synthesis of energetic compounds with high detonation performance and low sensitivity has always been the goal of the energetic material field. However, the synthetic chemistry of energetic compounds...

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Experimental study on hypergolic ignition and non-ignition for dicyanamide-based ionic liquids at low impact velocity conditions

Ionic liquids have a wide engineering application foresight due to their easy and safe storage and handling while are limited by the unclear mechanism of hypergolic ignition. In this study, three dicyanamide-based...

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A review of quantum chemical methods for treating energetic molecules

As a necessary tool for understanding, prediction, and design (especially on a microscopic scale), Quantum chemical (QC) methods have a profound impact on the field of energetic materials (EMs). This...

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High-pressure structural stability and melting performance of α-2,4-dinitroanisole

Energetic materials have to face variable environments throughout their life cycle. Therefore, revealing the evolvement of energetic materials under complex conditions is of great importance for their...

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Multi-parallel microfluidic recrystallization and characterization of explosives

A multi-parallel recrystallization system based on microfluidic technology was established for rapid recrystallization-condition screening and small-batch preparation of high-quality explosives. The...

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N-amination of nitrogen-rich scaffolds: From single N–N bond formation to diverse energetic functionalization strategies

The bond-formation strategy associated with carbon and nitrogen atoms is one of the most vital fundamental techniques in the construction of organic molecules. In comparison to well-established methodologies...

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Spray characteristics of Al-nanoparticle-containing nanofluid fuel in a Y-jet injector

In the aerospace field, energetic nanoparticles (NPs) are added to fuels to increase fuel density and energy. However, the non-Newtonian feature of NPs containing suspension restricts their application....

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