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ISSN: 2667-1344

Formation of condensed products during combustion of boron-based high-energy compositions

The methods and results of measuring the burning rate and quenching and sampling of the condensed combustion products (CCPs) near the combustion surface for high-energy compositions (HECs), containing...

New developments of HEMSim: a computational treatment for aluminized highly energetic materials applied to rock blasting

•Using an ideal detonation code (HEMSim) to describe non-ideal explosives.•Partial Al reaction is used as a parameter to align predictions with experiments.•Resulting theoretical JWL EoS are compared...

LOVA Propellant Formulations Based on RDX and GAP Energetic Plasticizer Obtained by Precipitation Method

In this study a facile and scalable precipitation method was developed, significantly reducing solvent consumption and eliminating nitrocellulose, thereby offering a safer and lower environmental impact...

Experimental Investigation and Theoretical Analysis of Combustion Residues of a Modular Propellant Charge Structure

The research on propellant charge combustion residues plays an important role in charge design and weapon applications. In this study, testing techniques including SEM/EDS, XPS, and XRD, along with...

Analysis of Rheological Properties of solid propellant Based on a Solid Content-Modified Herschel-Bulkley Model

To clarify how solid content regulates the rheological properties of solid propellant and support rheological prediction and process optimization for broad solid content formulations, this study investigated...

Catalytic One-Pot Scalable Synthesis of Energetic Pentazolate

A scalable synthetic method for metallic pentazolate via commercially available ferrous salt-catalyzed one-pot [3+2] cyclization/C–N dearylation is reported. Through mechanistic studies, a stable aryl-pentazole...

Recent progress in explosive substances: from synthesis to application

Novel Polyurethane Formulations Based on Bio-polyols: Synthesis, Characterization and Applicability in Composite Rocket Propellant Mixtures

This work presents novel polyurethane (PU) formulations including bio-based polyether polyols produced in Romania (PETOL), evaluated as alternative binders for composite solid rocket propellants. Four...

Investigation of the Influence of Internal Ballistic Energy Release Characteristics on Artillery Vibration Through Experiments and Simulations

The design and application of low-vibration propellant charges represent a key approach to enhance artillery system performance, with its core mechanism lying in suppressing harmful vibrations at their...

Studies on Creep–Recovery Viscoelastic Behavior of High-Energetic Composite Propellants using Dynamic Mechanical Analyser (DMA)

Reliable assessment of the long-term structural integrity of solid rocket motors requires quantitative understanding of the stress- and temperature-dependent viscoelastic response of composite propellants...

Design of Temperature-Pressure Synergistic Curing Considering Pressure Effects on the Propellant Grain

Residual stresses generated in the propellant grain during the curing and cooling processes significantly impair the structural integrity of solid rocket motors, and optimization of process control...

Strategy for Constructing Low-Sensitivity High-Energy Molecules by Combining N-oxidation and NO2/NH2 Substitution on Azole Rings

Low-sensitivity high-energy molecules (LSHEMs) are one of the focuses of energetics. Still, designing LSHEMs remains challenging due to the intrinsic energy-safety contradiction at the molecular level....

Mass spectrometric observation and reaction mechanism of gas-phase initial intermediates during TKX-50 decomposition

5,5′-bistetrazole-1,1′-diolate (TKX-50) is a novel insensitive energetic ionic salt which demonstrates considerable application potential due to its high density, high formation enthalpy, excellent...

Impact of temperature and humidity on the thermal decomposition behavior and the ignition characteristics of Si-based pyrotechnic delay composition

This study focuses on analyzing the degradation, ignition, and combustion behavior of a silicon (Si)-based pyrotechnic delay mixture. A comparative analysis is conducted between a fresh sample and one...

Qualitatively correlating molecular dynamics simulations and experimental determination of the thermal stability of energetic compounds

Thermal stability is both a fundamental property and an important performance of energetic compounds, and is prone to be understood and predicted by molecular dynamics simulations; still, it is faced...

Exploring the effect of kraft lignin on the stability and decomposition kinetics of nitrated cellulose carbamate

This study systematically investigated the stability and thermo-kinetic properties of a high-energy-density nitrated cellulose carbamate (NCC) system stabilized with Kraft lignin. The performance of...

Study on the influence of temperature and compressive stress on mechanical properties of porous propellants with special shapes

The mechanical properties of new propellants are an important basis for studying the internal stress propagation and damage mechanism of barreled weapons during use. Taking the porous special-shaped...

The polyurethane elastomer-based PBX with excellent cyclic manufacturing performance

•A PBX using thermoplastic polyurethane as a binder has been developed.•The thermoplastic PBX charge column is dense, with good mechanical properties.•Thermoplastic PBX has good cyclic manufacturing...

JWL equation of state parameters for ideal detonation: A comparative study of literature reports, theoretical derivation, and artificial neural network prediction

The Jones-Wilkins-Lee (JWL) equation of state (EOS) is widely used for interpreting the energy release during explosive detonation. Focused on the ideal detonation of high explosives, an artificial...

Unleashing the power of deep learning: A novel approach for defect detection in solid rocket motor

High-Energy Materials (HEMs), particularly those integral to solid rocket motors are linchpins of mission success and safety. Detecting defects within a solid rocket motor is challenging but crucial...

Enhancing energetic features of HTPB binder through nitro-functionalization and nitrocellulose doping

This study presents a double modification strategy to enhance hydroxyl‑terminated polybutadiene (HTPB) properties as an energetic binder. HTPB was chemically nitrated to obtain nitro-HTPB (NHTPB), then...

Synthesis of melt-castable gem-dinitro derivatives of 4,5,6,7-tetrahydrobenzofurazan and its N-oxide

The synthesis of energetic compounds of the gem-dinitrocarbocycle family, furazan and furoxan fused to dinitrocyclohexane, is reported. The construction of the gem-dinitro moiety was achieved by nitration...

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...

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