Results 51 to 60 of about 587 (158)

Étude des mécanismes d'initiation et de combustion dans des films réactifs multicouches Al/CuO : influence d'additifs et de porosité [PDF]

open access: yes, 2022
Les thermites, matériaux énergétiques composites à base de métaux et d'oxydes, sont des candidats prometteurs pour remplacer les matériaux conventionnels (CHNO) utilisés dans les systèmes pyrotechniques actuels. En effet, ils sont capables de générer une
Julien, Baptiste
core  

Transfer of Self‐Sustained Reactions between Thermally Coupled Reactive Material Elements

open access: yesAdvanced Engineering Materials, Volume 27, Issue 3, February 2025.
The analysis reveals how localized reactive multilayer materials, under gasless combustion, influence heat transfer and reaction kinetics. Factors like thermal conductivity, substrate properties, and obstacle composition are crucial. This understanding aids in optimizing engineering processes.
Deepshikha Shekhawat   +5 more
wiley   +1 more source

Additive Manufacturing of Energetic Materials and Its Uses in Various Applications [PDF]

open access: yes, 2017
The work discussed in this document seeks to utilize traditional additive manufacturing techniques to selectively deposit energetic materials. The goal was to gain a fundamental understanding of how to use commonplace 2D inkjet printing and 3D fused ...
Fleck, Trevor J.
core   +2 more sources

Fluctuating Flame from Suspending Ferrimagnetic Core/Shell Al@Fe3O4 Nanoparticles in a Magnetic Field

open access: yesAdvanced Materials Interfaces, Volume 11, Issue 29, October 15, 2024.
This article reports on the fabrication and microstructures of novel Al@Fe3O4 core–shell composite nanoparticles. Thermal analysis suggests the as‐prepared particles predominantly go through a solid‐state reaction mechanism that exhibits 30% lower activation energy compared to physically mixed nanocomposite.
Shina Maini, Anqi Wang, John Z. Wen
wiley   +1 more source

Microwave Ignition of Thermites

open access: yesPropellants, Explosives, Pyrotechnics, Volume 49, Issue 10-11, October 2024.
Abstract This study investigates the microwave ignition behavior of a range of thermites of aluminum, boron, titanium, and tantalum fuels with oxides of Bi2O3, CuO, and Fe2O3. In order to gain insight into the modes of energy transfer leading to ignition, thermites are heated in either a purely electric or magnetic field environment within a single ...
Justin Lajoie   +4 more
wiley   +1 more source

Nanothermite based anti-tamping technology

open access: yes, 2023
We developed a triggerable ultimate security device capable of physically destroying a memory chip that contains classified data, within a few milliseconds, upon the detection of intrusion.
Sevely, Florent   +4 more
openaire   +1 more source

EXPLORING THE RELATIONSHIPS BETWEEN FUEL AND OXIDIZER REACTION OF BIOCIDAL ENERGETIC MATERIALS [PDF]

open access: yes, 2019
Energetic materials are defined as a class of material with extremely high amount of stored chemical energy that can be released when ignited, along with intensive light emission and shock generation.
Wu, Tao
core   +1 more source

Probing the ignition mechanism of aluminum nanothermites [PDF]

open access: yes, 2012
Nanothermites are defined as intimate mixtures of metal and metal oxidizer particles usually below 100 nm in diameter. They belong to a class of energetic materials which have been of recent interest due to their high amounts of stored energy, and their ...
Chowdhury, Snehaunshu
core  

Tuning the Reactivity of Nanoenergetic Gas Generators Based on Bismuth and Iodine oxidizers [PDF]

open access: yes, 2019
There is a growing interest on novel energetic materials called Nanoenergetic Gas- Generators (NGGs) which are potential alternatives to traditional energetic materials including pyrotechnics, propellants, primers and solid rocket fuels.
A Chaalane   +50 more
core   +2 more sources

Design and development of nanoenergetic materials with tunable combustion characteristics [abstract] [PDF]

open access: yes, 2010
In recent years, nanoengineered thermites with tunable and tailored characteristics have attracted a great deal of attention owing to their enormous potential as excellent reactive materials, green primers, and structural energetic materials etc ...
Apperson, Steven J., 1982-   +5 more
core  

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