This article is cited in 12 papers

Oxidation of ASD-4 powder modified by $\mathrm{V}_2\mathrm{O}_5$

V. G. Shevchenko^a, D. A. Eselevich^a, N. A. Popov^a, V. N. Krasil'nikov^a, Z. S. Vinokurov^b, A. I. Ancharov^cd, B. P. Tolochko<sup>de

a</sup> Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg, 620990, Russia
^b Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
^c Novosibirsk State University, Novosibirsk, 630090, Russia
^d Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
^e Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630128, Russia

Abstract: The sequence of phase formation during ASD-4 aluminum powder modified by vanadium pentoxide during heating in air in the temperature range 873–1073 K was studied by synchrotron radiation X-ray diffraction. It was shown that the sharp acceleration of the oxidation of the modified powder was associated with the loss of the protective properties of the oxide shell on the particle surface due to the polyvalence of vanadium, which provides structural and phase changes on the surface and in the depth of oxidized metal.

Keywords: aluminum, powder, surface, modification, vanadium pentoxide, oxidation, phase analysis.

UDC: 546.32.33.881:546.62:669.094.3:539.26:548.73

Received: 28.11.2016
Revised: 21.04.2017

DOI: 10.15372/FGV20180109

 English version: Combustion, Explosion and Shock Waves, 2018, 54:1, 58–63

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