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Stabilizers are critical additives used to ensure long-term storage stability and safe usage of nitrocellulose-based propellants (NCBPs) by mitigating their inherent chemical instability. However, conventional stabilizer...

To address key challenges of conventional spherical gun propellants, including inconsistent energy release, harmful gas emissions, and long-term storage instability, this study utilizes fluidized bed technology combined ...

One of the main figures of merit in laser-ablative propulsion is the specific impulse, Isp, defined as the impulse per unit weight of fuel, and it is related to the exhaust velocity, ve, by the acceleration of gravity, I...

To investigate the influence of cracks and gaps on the reaction evolution characteristics of aluminum-containing DNAN-based explosives after the formation of mechanical induced hotspots, explosive charge samples with dif...

Materias / palabras clave: Energetic materials; Explosives; Propellants; Sensitivity; Characterization; Measurements

Aluminium is universal and vital constituent in composite propellants and typically used to improve performance. Aluminum agglomeration takes place on the burning surface of aluminized propellants, which leads to reduced...

The development of miniaturized, flexible MEMS pyrotechnic devices necessitates advanced fabrication techniques. Herein, a strategy is reported that leverages the integration of ink-jet printing and dynamic cross-linking...

A conceptual and feasibility study of an RBCC SSTO catapult-launched reusable strap-on parallel-boosted gliding-reentry lifting-body spaceplane for economic manned short-duration 300-kg payload LEO access is presented an...

Ammonium dinitramide (ADN), as a novel oxidizer characterized by high energy density, low signature, and environmental friendliness, exhibits significant application potential in composite solid propellants. However, its...

Adding catalysts to regulate the thermal decomposition of ammonium perchlorate (AP) is an essential strategy for enhancing the combustion performance of propellants. In this study, a carbon-loaded Co catalyst system with...

The present work focuses on the study of low thrust propulsion systems. Cold gas, thermal and monopropellant systems with a blow down depressurisation mode have been taken in consideration in this study. Most of propella...

To analyze the effects of temperature, concentration, and reaction time on the denitration rate of double based spherical gun propellant (DBSGP) and to investigate the denitration reaction-diffusion coupling process for ...

Bobbin tool friction stir welding (BT-FSW) is a solid-state joining technique that produces high-strength welds without the need for backing plates. This study introduces a new variant, termed hybrid bobbin tool friction...

Determining the performance characteristics of off the shelf pulsed plasma thrusters to enhance the life time of low earth orbiting platforms was investigated theoretically. Pulsed plasma thruster analysis was accomplish...

In recent decades, alternative propulsion systems have been investigated and have attracted great interest in the space community. Most of these alternative propulsion systems need propellants. One alternative propulsion...

Spray burners form an essential part of any liquid propulsion system as they are responsible for injecting, atomizing, mixing and combusting the liquid fuel. Spray combustion used in aerospace applications like the liqui...

In this paper we present the results of the phylogenetic analysis of projectile points dating from the Middle-Late and final Late Holocene recovered from different sites along the coast of San Matías Gulf (Río Negro pr...

Combustion of aluminized solid propellants exhibits phenomena associated with accumulation, agglomeration, ignition, and combustion of ultra-fine aluminium particles. In this study, agglomeration phenomenon of ultra-fine...