Recent Articles

Open access

ISSN: 2667-1344

Investigation of the initiatory reactivity of polynitro -amines and -arenes via X-ray photoelectron spectroscopy

•Binding energies in relation to primary homolysis X-NO2 bonds (X = C or N)•Length of the longest X-NO2 bond in relation to binding energies•Binding energies N1s (N-NO2) & O1s (NO2) related to impact...

Unraveling changes in the decomposition behavior of Composite Solid Propellants using Mechanoactivated and Recrystallized fine Ammonium Perchlorate

The particle size distribution and the shape of the Ammonium perchlorate (AP) particles are often modulated to control the combustion and ballistic characteristics of a composite solid propellant (CSP)....

Scaling Considerations for Aluminum Agglomeration in Solid Rocket Propellants

Aluminum agglomeration during solid rocket propellant combustion decreases rocket motor performance. Previous works have generally been unsuccessful in determining consistent trends between propellant...

Dimeryl Diisocyanate (DDI) Curing Agent: Synthesis via Triphosgene reagent and Curtius Rearrangement of acyl hydrazide

Dimeryl diisocyanate (DDI), a bio-based cycloaliphatic isocyanate with high molecular weight and long carbon chains, is a suitable replacement for conventional isocyanates due to its advantages such...

Multiscale Analysis of Mechanical Properties in Carbon Nanotube-Reinforced Solid Propellants Using the PPR Cohesive Model

•A three-level equivalent multiscale representative volume element framework was established to predict the tensile elastic modulus and strength of carbon-nanotube-reinforced composite solid propellants.•A...

Neural network modeling for determining patterns of change in the properties of additive polymer composites after exposure to a microwave field

Problems in determining rational hardening process modes are identified, related to the multifactorial nature of the processes occurring in materials consisting of components with different dielectric,...

Effect of Titanium Dioxide on the Burning Rate and Agglomeration Parameters of Aluminized Composite Propellant

The combustion characteristics of composite propellants based on ammonium perchlorate, aluminum powder, active binder, and optionally a modifier additive – titanium dioxide of various types in an amount...

Simulation and Experimental Study of an Integrated Static-Dynamic Mixer for Gradient Printing of Energetic Materials

Gradient printing of energetic materials represents a pivotal approach for achieving tunable power output in advanced weapon systems. This study designed an integrated static-dynamic(S-D) mixer to address...

The Synthesis and Properties of Difluoroamino-derivatized and Fluorodinitro-derivatized Energetic Compounds

Fluorodinitro and difluoroamino groups, as important fluorine-containing functional groups, have garnered significant attention in recent years due to high density, high oxygen content, and ability...

Study of Photocatalytic Properties of Titanium Dioxide in Various Media (Review)

A short review of the application of the titanium dioxide photocatalytic properties has been carried out. Special attention is given to experiments on the purification and disinfection of air from organic...

Effect of Li doping on the ignition and combustion performance of Al-2B alloy powders

The energy release of boron (B) is limited by the surface oxide layer generated during the combustion process. Al-B alloy powder serves as a common and promising modification method; however, the energy...

Effects of binder systems on the 3D printability and combustion performance of Al/AP energetic composites

In order to investigate the influence of different binder systems on the adaptability to 3D printing processes and combustion performance, this study selected hydroxyl‑terminated polybutadiene (HTPB)...

Modeling of sustainable B/B4C/Bi2O3 pyrotechnic compositions using RSM

Pyrotechnic compositions are energetic materials with highly application-specific formulations, whose combustion behavior remains difficult to mathematically model due to complex multivariate interactions....

Ignition and combustion characteristics of gel TMEDA and liquid WFNA in a hypergolic system

•Hypothesis was formulated for ignition and combustion mechanism of TMEDA and WFNA•Increasing fuel particle fall height reduces the ignition delay time•Ignition delay time and burnout time reduced with...

Enhance the fracture toughness of RDX-based propellant: Design of mussel-activated RDX surface functionalized coating

•The fracture toughness of nitramine propellant was effectively improved by RDX surface functionalized coating design.•The interface interaction can be regulated by controlling the particle size of...

A high energetic cocrystal with extremely similar molecular structures

•A large block-shaped energetic cocrystal of 1,3,5,7-tetranitro-1,3,5,7-tetraazacyclootane (HMX) and its key precursor and structural analogue 1-nitroso-3,5,7-trinitro-1,3,5,7-tetraazacyclootane (MNX)...

Micron and nano iron particles: Experimental investigation of size dependent combustion in ethanol slurries and bimetallic thermite

•The study analyzes distinct combustion behaviors of micron- and nano-sized iron particles technology in ethanol and thermite.•Micron Fe in ethanol forms porous shells, enhancing burning.•Nano Fe enables...

3D printing and performance study of CL-20-based composite energetic materials with PVA/PAA/M-PTW networks

•Developed a PVA/PAA/M-PTW interpenetrating polymer network binder enabling strong, flexible, and safe CL-20-based composites.•Achieved precise 3D structuring of energetic materials via direct ink writing...

Impact of Particle Size Gradation on the Performance of Nitroguanidine Gun Propellants

•High-performance propellants were prepared by using NQ with different particle size gradations.•The mechanical properties of NQ was studied by different methods.•An impressive enhancement mechanism...

NTB – A green energetic molecule with extreme performance

•NTB (bis[2,2-dinitro-2-(5-nitrotetrazol-2-yl)ethyl]nitramide) emerges as a green energetic compound capable of theoretically surpassing the 10,000 m/s detonation velocity threshold, reaching an estimated...

Micro-explosion and recycling of an iron-ethanol-kerosene slurry fuel

•Kerosene coating delays Fe oxidation by up to ∼95 °C.•5 wt % ethanol triples burn rate, halves combustion time.•Micro-explosions peak at ∼19,707 s⁻¹ in 10 µm slurries.•Closed loop: burn → H₂ reduce...

Aging effects on mechanical properties, plasticizer loss, and molar mass distribution of double base propellants

This work examines how aging alters the mechanical and chemical properties of double base propellants. Three formulations naturally aged for up to 20 years were analyzed through thermomechanical analysis,...

Metallic Composite Energetic Materials (MCEMs)

Advanced kinetic and thermodynamic analysis of sewage sludge combustion: A study of non-isothermal reaction mechanisms and energy recovery

•Thermochemical methods reduce sewage sludge (SS) volume while recovering energy.•Study identifies six SS combustion stages via deconvolution analysis.•Isoconversional methods used to determine activation...

Impact of aluminum powder content on explosion fireball expansion and shock wave propagation in HMX-based aluminized explosives

This study aims to investigate the effects of different aluminum (Al) powder contents on the expansion process of the explosion fireball and the propagation characteristics of shock waves in 1,3,5,7-Tetranitro-1,3,5,7-tetrazocane...

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