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ISSN: 2667-1344

3D printed different polymer fuel grains for hybrid rocket engine

The advent of various additive manufacturing technologies, such as 3D printing, has changed the structural design and preparation process of rocket fuels. In order to investigate the combustion properties...

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Elaboration, spectroscopic characterization, and study of the thermal decomposition process of energetic composites based on ammonium perchlorate and dual-biopolymers

The current study presents a successful elaboration and characterization of an innovative energetic composite based on nitrocellulose and nitrostarch (NCNPS) dual-biopolymers, and ammonium perchlorate...

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Survey of burning rate measurements in small solid rocket motors

Burning rate plays a crucial role in determining the performance of solid rocket motors (SRMs). In the traditional approach for solid propellant propulsion, technical activities regarding burning rates...

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Multi-hole grid thruster plume simulation model based on single grid aperture analytical model

This paper presents a plume divergence angle prediction model for ion thruster. Firstly, an analytical model using Gaussian distribution for single grid hole plume is proposed. The parameters of this...

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Array of carbon black-based microthrusters for CubeSat applications

Access to space for small private companies requires to improve the ability to bring low-cost satellites into orbit. CubeSats offer a unique opportunity to meet these needs thanks to their reduced production...

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A review on solid propellant micro-thruster array based on MEMS technology

With the development of micro-spacecraft technology, micro-nano satellites have the advantages of small size, low power consumption, short development cycle, formation networking, etc., and can complete...

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Numerical simulation of nano-aluminum ignition in oxygen and steam environments

The ignition characteristics of nano-aluminum (nano-Al) in oxygen and steam environments were numerically studied in this work. A detailed kinetic mechanism of nano-Al combustion was developed, and...

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Energetic material characterization and ignition study of MEMS based micro-thruster for multi spacecrafts missions

Over the past few years, there has been a growing recognition of the importance of multi-spacecraft missions for a variety of purposes, including Earth observation, navigation, guidance, climate monitoring,...

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Development of high burn rate propellant and testing in miniature rocket motor for control applications

For aerospace vehicles, notably missiles or satellites for attitude and divert control, impulsive thrusters are most desirable if they are quantized as exact instantaneous pulses available over and...

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Enhancement of the energetic performance of solid fuels with metal-fluoropolymer additives

Aluminum (Al) holds a pivotal role in augmenting the energetic potential of solid fuel formulations. Its incorporation can notably amplify the energy yield upon combustion. Nevertheless, challenges...

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Enhancing accuracy in Equivalent In-Service-Time assessment for homogeneous solid propellants: A novel temperature-independent predictive model utilizing PCA of FTIR Data

The present study was devoted to setting a universal T-independent predictive model of equivalent in-service-time (EIST) for homogenous solid propellant (HSP) to surpass the limits of the van't Hoff...

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Towards to some published misconceptions about TNT and ɛ-CL20

•High impact sensitivity of TNT of 14 - 16 J is due to the air microbubbles in it•Internal porosity & cracks in ɛ-CL20 crystal cause high sensitivity of 2 - 4.4 J•These values were dominated in literature...

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Exploring the combustion mechanism of single micron-sized aluminum particles with a numerical model

In this work, we explore the combustion mechanism of single micron-sized aluminum particles using a numerical model. The Burcat database and Catoire mechanism is considered as the thermodynamic data...

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Chemical Compatibility of Energetic Metal Complexes with Polymers by Thermal Analytical Techniques

•This article represents an interesting piece of work on chemical compatibility of energetic metal complexes with polymers epoxy resin and Viton A by thermal analytical techniques.•The chemical compatibility...

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Evaluating the Performance of Ceramic/Fabric Composite Panels Against Simultaneous Steel Projectile Impacts: An Experimental and Numerical Study

•Experiments were conducted on ceramic/fabric composite panels, made from 99.5% alumina along with Kevlar® and carbon fibre fabrics, to assess their ballistic performance, focusing on the dynamics of...

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Synthesis of Propellant Grade HHTPB by Hydrogenation of HTPB using Pd-activated charcoal as catalyst

To derive more performance from the conventional composite propellant based on Hydroxyl-terminated polybutadiene (HTPB) and ammonium perchlorate (AP), it is envisaged to hydrogenate HTPB, which increases...

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Core-shell structured α-AlH3/Fe2O3 thermite with improved heat-release and combustion performance

Thermites are widely used in propellants, explosives and ignition materials because of their high heat release rate and good combustion efficiency. Structural control over thermites to achieve improved...

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Nitramino-polymer with ether bridges and 1,2,3-triazole subunits incorporated into the polymer chain

The creation of novel energetic polymers for future advanced solid composite propellants and gunpowder is an urgent area of modern research. A simple and effective waste-free cycloaddition reaction...

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Demonstration of dual-thrust capability in hybrid rockets using multi-layered tubular fuel grains

•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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Highly Energetic Formulations of Boron and Polytetrafluoroethylene for Improved Ignition and Oxidative Heat Release

Boron (B) is desirable for energetic applications due to high gravimetric and volumetric energy densities. However, their use is limited because the native oxide shells on their surfaces limit oxidation...

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Research progress of the combustion characteristics of dust/combustible gas hybrids

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

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

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

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

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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