Results 131 to 140 of about 372 (181)
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Reactions of New Thermite Systems
Japanese Journal of Applied Physics, 1966It has been observed that new thermite reactions become possible by using refractory metals such as niobium, tantalum or titanium. Besides the significantly greater heat of reaction, the new thermite systems are characterized by a much lower kindling temperature than the conventional thermites if sufficiently fine powders of metals and oxides are ...
Nobuzo Terao, Henri Baroen
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Cermets From Thermite Reactions
Journal of the American Ceramic Society, 1959The process whereby the components of a thermite are pressed into a desired shape and ignited to form a cermet is described. In this process, the oxide of the cermet (Al 2 O 3 ) is produced from the oxidation of powdered aluminum and the metallic phase ...
J. D. WALTON, N. E. POULOS
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Probing the Reaction Dynamics of Thermite Nanolaminates
The Journal of Physical Chemistry C, 2015Al/CuO reactive nanolaminate ignition was studied using temperature jump (T-Jump) heating for rates greater than 105 K/s. Multilayer samples were sputter deposited onto thin platinum filaments in alternating layers of Al and CuO. The filaments were resistively heated in a time-of-flight mass spectrometer (ToF-MS), while ignition and reaction were ...
Garth C. Egan +3 more
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Kinetics of thermite reaction in Al-Fe2O3 system
Thermochimica Acta, 2006Abstract After non-isothermal differential scanning calorimetry (DSC) and X-ray diffraction experiments are carried out, the reaction kinetics of Al-Fe2O3 system is analyzed by a model-free Starink method. In our study, activation energy was determined as 145 kJ/mol for 8Al-3Fe2O3 thermite reaction, the value is comparable to the activation energy ...
Run-Hua Fan +4 more
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Thermite reactions: their utilization in the synthesis and processing of materials
Journal of Materials Science, 1993A class of exothermic reactions between, typically, a metal and an oxide, commonly referred to as thermite reactions, is reviewed with emphasis on their utilization in the synthesis and processing of materials. Theoretical and experimental results relating to ignition and combustion (self-propagation) characteristics of these reactions are presented.
L. L. Wang, Z. A. Munir, Y. M. Maximov
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Mechanism of Molten-Salt-Controlled Thermite Reactions
Industrial & Engineering Chemistry Research, 2011The present work was undertaken to study the chemistry and phase formation mechanism in the salt-controlled MoO3 + Mg + NaCl thermite reaction. It was found that the structure and phase formation mechanism in the studied system primarily depend on the salt content in the initial mixtures.
Khachatur V. Manukyan +6 more
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Metals and Materials International, 2021
In this study, the application of thermite reactions in Nb2O5–Al system in the fabrication of novel NbAl3/Al2O3 composites was investigated. Combining the thermite reactions with self-propagating high-temperature synthesis (SHS) technique in compressed powder mixtures of Nb2O5 + Al resulted in layer-by-layer progress of the exothermic reaction ...
Arman Ahmadi-Binahri +3 more
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In this study, the application of thermite reactions in Nb2O5–Al system in the fabrication of novel NbAl3/Al2O3 composites was investigated. Combining the thermite reactions with self-propagating high-temperature synthesis (SHS) technique in compressed powder mixtures of Nb2O5 + Al resulted in layer-by-layer progress of the exothermic reaction ...
Arman Ahmadi-Binahri +3 more
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1914
The object of this paper is to demonstrate some new Thermit reactions the main feature of which ist the substitution of other elements or alloys for aluminium in the aluminothermic reaction.
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The object of this paper is to demonstrate some new Thermit reactions the main feature of which ist the substitution of other elements or alloys for aluminium in the aluminothermic reaction.
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Reaction path in the magnesium thermite reaction to synthesize titanium diboride
Journal of Materials Research, 1997TiB2, along with MgO and Mg3B2O6, was formed by a thermite reaction between Mg, amorphous B2O3, and TiO2 powders in argon. The mixture 5Mg–TiO2–B2O3 along with binary mixtures and single components were analyzed using differential thermal analysis (DTA) and x-ray diffraction (XRD).
V. Sundaram, K. V. Logan, R. F. Speyer
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Journal of Chemical Education, 2014
Presented here is a set of demonstrations that are used as visual tools for engaging students in a discussion of reaction chemistry and thermodynamics. Students are first shown a series of simple exothermic reactions: (1) the reaction of H2SO4 with sugar, (2) the decomposition of KClO3, and (3) the reaction of H2SO4 with KClO3.
McGuire, Brett A. +4 more
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Presented here is a set of demonstrations that are used as visual tools for engaging students in a discussion of reaction chemistry and thermodynamics. Students are first shown a series of simple exothermic reactions: (1) the reaction of H2SO4 with sugar, (2) the decomposition of KClO3, and (3) the reaction of H2SO4 with KClO3.
McGuire, Brett A. +4 more
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