Results 141 to 150 of about 581 (155)

Detailed Chemical Kinetic Models for Nanothermites Combustion

Propellants, Explosives, Pyrotechnics, 2018
AbstractThe development of nanothermites and the understanding of their behaviors need several improvements in many domains including thermochemistry and chemical kinetics. In this paper a brief state of the art is presented in these fields and possible approaches are presented.
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Melt dispersion mechanism for fast reaction of nanothermites

Applied Physics Letters, 2006
An unexpected mechanism for fast oxidation of Al nanoparticles covered by a thin oxide shell (OS) is proposed. The volume change due to melting of Al induces pressures of 0.1–4GPa and causes spallation of the OS. A subsequent unloading wave creates high tensile pressures resulting in dispersion of liquid Al clusters, oxidation of which is not limited ...
Valery I. Levitas, Blaine W. Asay, Steven F. Son, Michelle Pantoya   +3 more
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Reduced-Sensitivity Nanothermites Containing Manganese Oxide Filled Carbon Nanofibers

The Journal of Physical Chemistry C, 2010
Nanothermites are versatile pyrotechnic systems composed of a metal oxide and a reducing metal powder, such as aluminum. The high mechanical sensitivity of some of these mixtures (e.g., MnO2/Al) makes their handling hazardous. Enclosing the metal oxide inside carbon nanofibers—thus separating oxidizer and reducing agent—is a new way to lower the ...
Benny Siegert, Marc Comet, Olivier Muller, Geneviève Pourroy, Denis Spitzer   +4 more
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Phosphorus-based nanothermites: A new generation of energetic materials

Journal of Physics and Chemistry of Solids, 2010
Abstract Thermites are energetic materials that are classically made of a transition metal oxide mixed with a reducing metal. Contrary to explosives, thermites do not detonate because their combustion is relatively slow and their reaction by-products are often solid or liquid.
Marc Comet, Vincent Pichot, Benny Siegert, Fabien Schnell, Fabrice Ciszek, Denis Spitzer   +5 more
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Electric-Spark Initiation of Nanothermites

Combustion, Explosion, and Shock Waves, 2023
A. Yu. Dolgoborodov, B. D. Yankovskii, P. A. Arsenov, S. Yu. Anan’ev, L. I. Grishin, G. E. Val’yano, T. I. Borodina, G. S. Vakorina   +7 more
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Nanothermite auf Sulfat‐Basis: ein weites Feld metastabiler Kompositmaterialien

Angewandte Chemie, 2015
AbstractIn dieser Arbeit wurden Metallsulfate (Me=Ba, Bi, Ca, Cu, Mg, Mn, Na, Zn, Zr) als Oxidationsmittel in reaktiven Mischungen mit Al‐Nanopulvern umgesetzt. Die resultierenden neuen Arten dieser Nanothermite zeigen im Vergleich zu konventionellen Al/Metalloxid‐Mischungen (1.5–4.8 kJ g−1) besonders hohe Reaktionswärmen, (4–6 kJ g−1), verbunden mit ...
Marc Comet, Geoffrey Vidick, Fabien Schnell, Yves Suma, Bernard Baps, Denis Spitzer   +5 more
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Reactive characterization of nanothermites

Journal of Thermal Analysis and Calorimetry, 2012
Marc Comet, Benny Siegert, Vincent Pichot, Denis Spitzer   +3 more
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IGNITION CHARACTERISTICS OF NANOTHERMITE SYSTEMS

International Journal of Energetic Materials and Chemical Propulsion, 2008
Jan Puszynski, Chris J. Bulian, Jacek J. Swiatkiewicz   +2 more
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Aluminum/lead tetroxide nanothermites for semiconductor bridge applications

Chemical Engineering Journal, 2023
Chunpei Yu, Zilong Zheng, Bonan Gu, Yajie Chen, Jianyong Xu, Lin Zhang, Wei Shi, Jiaxin Wang, Changkun Song, Junhong Chen, Kefeng Ma, Wenchao Zhang   +11 more
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Nanothermites

2016
Eric Lafontaine, Marc Comet
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