Demonstration of dual-thrust capability in hybrid rockets using multi-layered tubular fuel grains
December 2024
•Novel Multi-Layered Tubular (MLT) fuel grains were designed for Dual-thrust profiles in hybrid rockets.•Fuels with distinct regression rates are arranged as layers to produce a boost-sustain phase...
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Research progress of the combustion characteristics of dust/combustible gas hybrids
December 2024
Due to the high dispersion of solid powder, it is very easy to form a powder/gas hybrid system, which greatly increases the probability and severity of explosion accidents. The researchers both domestically...
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Study on the open-air NEPE solid propellant fire characteristics: Effect of altitude upon the flame performance through CFD
December 2024
Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there...
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Thermodynamics and energy properties of the lowest eutectic mixture of TNBA/MTNP
December 2024
In light of the challenges posed by the low density, diminished energy levels, and shrinkage holes in the loading arise of the current cast-cured explosive liquid vehicle, TNT, the investigation of...
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Pyrolysis mechanism and evolved gas analysis of a promising energetic carbamate-functionalized microcrystalline cellulose nitrate
December 2024
The present study aims to elucidate the decomposition mechanism and gas evolution characteristics of a promising energy-rich carbamated microcrystalline cellulose nitrate (M3CN). The molecular structure...
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Solid propellant burn rate characterization: Effect of copper chromite blend with oxidiser and its storage
December 2024
This work details the study conducted on composite solid propellants with activated copper chromite (ACR) as burn catalyst for its burn rate change with time due to the interaction of ammonium perchlorate...
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Preparation of HNS-based sticks through 3D printing and its combustion performance
December 2024
Microscale energetic materials have garnered considerable attention because they can be integrated in microelectromechanical systems for several potential applications. Hexanitrostilbene (HNS) has been...
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High-nitrogen azotetrazole based pyrogen gas generating propellants: Aspects on synthesis, characterization, combustion characteristics and kinetics
December 2024
Propellant formulations containing a novel high nitrogen azotetrazole salt viz., diammonium 5,5′-azotetrazolate (DAAzT) along with two different binders viz., hydroxyl terminated polybutadiene (HTPB)...
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Novel approach for preparation of the energy-safety balanced cocrystals of attractive nitramines via coagglomeration
December 2024
Co-agglomeration unique crystal engineering approach; in which the co-precipitated micro-particles of nitramines with other energetic materials co-agglomerated by the slurry method; to modify the energetic...
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Combustion features of dispersed aluminum and boron in high-energy composition
December 2024
Combustion of dispersed metals in an oxidizing environment is of practical interest, which is related to the prediction of characteristics of high-energy compositions (HECs) containing metal powders,...
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Research progress on the synthesis of energetic N-oxides based on diazine, triazine and tetrazine
Available online 9 November 2024
The skeleton structures of azine (including diazine, triazine and tetrazine) are widely used as important candidate for building good performance energetic materials due to their uniform electron distrubution,...
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Investigation on ignition overpressure wave characteristics and its ambience in launch pad
Available online 15 October 2024
Large solid rocket motors are widely used as booster stages as well as in core stages of heavy lift launch vehicles due to its simple operation and high thrust delivery capability compared to other...
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Simple synthesis of monocyclic pyrimidine-based energetic molecule with “amino–nitro–hydrazino” arrangement
Available online 15 October 2024
•2,4-Diamino-6-hydrazineyl-5-nitropyrimidine (3) with a monocyclic structure was designed and synthesized by the two-step reaction.•Compound 3 features an alternating “amino–nitro–hydrazino” arrangement.•Compound...
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Trinitroethyl nitropyrazole-3-carboxylates
Available online 15 October 2024
Image, graphical abstractThe esterification of nitropyrazole-3-carboxylic acids with 2,2,2-trinitroethyl hydrogen sulfate, prepared in situ from trinitroethanol and sulfurochloridic acid, was realized...
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Ballistic performance of alumina/carbon fiber/aramid composite against impact of different projectile shapes
Available online 15 October 2024
This study explores the ballistic performance of an alumina/carbon fibre/KevlarⓇ aramid composite panel against impacts from various projectile shapes, including ogive, conical, cylindrical, hemispherical,...
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Understanding of the bond dissociation energy of C-NO2 in five- and six-membered N-heteroaromatic derivatives
Available online 10 October 2024
A clear structure-sensitivity relationship in energetic molecules is beneficial for designing energetic materials. At the molecular level, sensitivity is closely related to the bond dissociation energy...
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Kinetic Research on the Curing Reaction of PBT/BPS via FT-IR Measurements
Available online 5 October 2024
To investigate the reaction process between 3,3′-bis(aminomethyl)oxetane/tetrahydrofuran copolymer(PBT) binder and acetylenic curing agents, this study employed bis-propargyl-succinate (BPS) as the...
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Towards understanding the effect of temperature and humidity on the safety and performance of tracer pyrotechnic composition
September 2024
The present work aims to study the effect of environmental hazards, namely, temperature and humidity, on the performance and sensitivity of tracer pyrotechnic composition. The experiments showed that...
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HTPB propellant binder supplemented with nitro potato starch: Formulation, characterization, and thermal decomposition behavior
September 2024
This study conducted a detailed examination of the characteristics of hydroxyl‑terminated polybutadiene (HTPB) doped with potato starch nitrate (NPS) as a high-energy-density binder. The investigation...
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Deep-learning prediction of safety moiety of salen-type complex crystals towards explosive perchlorate salts
September 2024
Perchlorate compounds are well-known for their explosive and hazardous nature. Considering previously reported perchlorate crystals of salen-type manganese (III) complexes, our study aimed to identify...
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Recent application of porous materials in explosives: A mini-review
September 2024
Nowadays, porous structures have exhibited many novel characteristics in the microstructure design of energetic materials, which possesses a unique impact on the macroscopic properties of energetic...
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Combustion of iron particles in solid propellants at elevated pressure
September 2024
Metal fuels, such as aluminum (Al) and iron (Fe), can be added to composite solid propellants to improve their performance, such as specific impulse, density, and burning rate. In comparison to aluminum,...
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Isomerism of nitratoalkylazoles
September 2024
In the field of energetic materials, traditional materials with high toxicity or other disadvantages are mostly used. There is an urgent need for trinitrotoluene replacements (TNT), which itself is...
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Thermal decomposition and combustion performance of the organic-inorganic hybrid crystal structure oxidant DAN-2
September 2024
In this paper, we investigated the potential use of a new organic-inorganic hybrid crystal structure based on KNO3 in ignition compositions. H2dabco[K(NO3)3] (DAN-2) with organic-inorganic hybrid crystal...
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Enhanced combustion reaction and energy output of Al based energetic materials through introducing perfluorocarbon
September 2024
Introducing additional oxidizers in aluminized explosives is an effective way to improve energy performance by enhancing the secondary combustion reaction. In this work, perfluorocarbon as oxidizer...
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