Results 121 to 130 of about 304,340 (156)

Oxidation and oxidation products of encapsulated aluminum nanopowders

Journal of Nanoparticle Research, 2020
The encapsulation and the oxidation of encapsulated aluminum nanoparticles has been studied. The effect of the aluminum nanopowders encapsulation on their reactivity has been studied. The encapsulation has been shown to enhance the stability of aluminum nanopowders with retaining high reactivity, to alter the chemical composition and morphology of the ...
A. S. Lozhkomoev, N. G. Rodkevich, A. B. Vorozhtsov, M. I. Lerner   +3 more
openaire   +2 more sources

Thermal decomposition of chemically precipitated nanopowder of aluminum hydroxide

Physics and Chemistry of Materials Treatment, 2022
In this study, the phase formation of aluminum oxide nanopowder during thermal heating of chemically precipitated aluminum hydroxide was discussed. Nanopowders of aluminum oxide and hydroxide were characterized by X-ray diffraction and thermogravimetric analysis, electron microscopy, energy dispersive X-ray spectroscopy analysis.
E. L. Dzidziguri, A. A. Vasilev, D. Yu. Ozherelkov, I. A. Pelevin, B. O. Zotov, L. V. Fedorenko, A. A. Gromov   +6 more
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Plasma Chemical Synthesis of Aluminum Nitride Nanopowder

Key Engineering Materials, 2019
We studied in detail the process of producing nanosized aluminum nitride using inductively coupled nitrogen plasma from micron powder of pure aluminum. The phase and granulometric composition of the obtained nanopowders, as well as their morphology, was studied.
Pavel Alexandrovich Novikov, Artem Eduardovich Kim, Nikolay Evgenievich Ozerskoi, Qing Sheng Wang, Anatoly Anatolyevich Popovich   +4 more
openaire   +1 more source

Influence of humidity on the thermal behavior of aluminum nanopowders

Materials Chemistry and Physics, 2006
Abstract Aluminum (Al) nanopowders have increasingly gained attention because of their potential incorporation in explosive and propellant mixtures. This paper reports on a qualitative study on influence of humidity on the thermal behavior of Al nanopowders and the oxidation of aluminum nanoparticles containing a passivating oxide coating.
Ying Li, Wulin Song, Changsheng Xie, Dawen Zeng, Aihua Wang, Mulin Hu   +5 more
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Rapid Synthesis of Aluminum Nitride Nanopowders from Gaseous Aluminum Chloride

Key Engineering Materials, 2020
The synthesis of aluminum nitride (AlN) powders is traditionally completed through a thermal nitridation process, in which the reacting aluminum powders are combined with nitrogen at high temperatures with a long reaction time (usually several hours).
Fu Lin Chu, Lai Wang Wang, Meng Yung Sun, Cheng Hsien Tsai   +3 more
openaire   +1 more source

Application of Aluminum Nanopowder for Pure Hydrogen Production

Key Engineering Materials, 2016
The problems of hydrogen energetic as well as a method of high pure hydrogen obtaining are presented in the paper. It was suggested to use the reaction of aluminium nanopowder with water, as the reaction proceeds with high rate even at ambient conditions (the rate of hydrogen emission reached 18 ml/(s∙g)) and high degree of conversion (up to 100 ...
Alexander P. Ilyin, Liudmila O. Root, Andrei V. Mostovshchikov   +2 more
openaire   +1 more source

Passivation of aluminum nanopowders for use in energetic materials

Russian Journal of Physical Chemistry B, 2015
The reactivity of passivated aluminum nanopowders was studied. Organic coating has been shown to enhance the resistance of aluminum nanopartic1es to the effect of water vapor and causes changes in the parameters of the nonisothermal oxidation by air oxygen.
M. I. Lerner, E. A. Glazkova, A. B. Vorozhtsov, N. G. Rodkevich, S. A. Volkov, A. N. Ivanov   +5 more
openaire   +1 more source

Formation and Sintering of Boehmite and Aluminum Oxide Nanopowders

Refractories and Industrial Ceramics, 2017
Formation and sintering of nanostructured Al2O3 and boehmite powders prepared by hydrothermal synthesis from aluminum powder are studied. Formation of workpieces (green bodies) is performed by extrusion, static and explosive pressing followed by high-temperature sintering.
A. V. Bersh, A. V. Belyakov, D. Yu. Mazalov, S. A. Solov’ev, L. V. Sudnik, A. V. Fedotov   +5 more
openaire   +1 more source

Characterization of Aluminum Powders: II. Aluminum Nanopowders Passivated by Non‐Inert Coatings

Propellants, Explosives, Pyrotechnics, 2006
AbstractResults of DTA‐TG investigation and chemical analysis of electro‐exploded aluminum nanopowders, passivated and/or coated with the non‐inert reagents: nitrocellulose (NC), oleic acid (C17H33COOH) and stearic acid (C17H35COOH), which were suspended in kerosene and ethanol, amorphous boron, nickel, fluoropolymer, ethanol and air (for comparison ...
Alexander Gromov, Alexander Ilyin, Ulrich Förter‐Barth, Ulrich Teipel   +3 more
openaire   +1 more source

The Energy Stored in the Aluminum Nanopowder Irradiated by Electron Beam

Key Engineering Materials, 2016
The influence of the electron beam irradiation on the parameters of aluminum nanopowder oxidation by heating in air was studied. It was found that the oxidation starts at the temperature in the range from 410° C to 460° C and independent on the radiation dose. The degree of oxidation varied from 44.4 % to 58.3 % and its dependence on the radiation dose
Andrei Mostovshchikov, Alexander P Ilyin, Ivan Egorov   +2 more
exaly   +2 more sources