This article is cited in 9 papers

Effect of barium on the oxidation kinetics of an aluminum-based alloy powder

V. G. Shevchenko^a, D. A. Eselevich^a, A. I. Ancharov^bc, B. P. Tolochko<sup>b

a</sup> Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg, 620990, Russia
^b Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630128, Russia
^c Novosibirsk State University, Novosibirsk, 630090, Russia

Abstract: The effect of the phase composition of an aluminum-based alloy powder containing 1.3% barium and the products of its interaction with air on the kinetics and mechanism of oxidation was first studied by x-ray diffraction using synchrotron radiation. It is found that the high surface and reactivity of barium lead to the activation of aluminum oxidation due to the heterogeneity of the phase composition of the barrier layer of the reaction products on the particle surface.

Keywords: aluminum powder, surface segregation, alloying, in situ study of phase transformations, oxidation activity.

UDC: 544.723.2:544.23

Received: 16.10.2013

 English version: Combustion, Explosion and Shock Waves, 2014, 50:6, 647–652

Bibliographic databases:

•