Abstract
The diffusion exchange by oxygen atoms between bulk and (100) surface of tantalum at the earliest stages of oxygen adsorption was studied by high-temperature Auger electron spectroscopy (AES), whereby the spectra were recorded immediately in the course of heating the sample up to 2500 K. A difference of the potential barriers for the inward and outward diffusion of oxygen was determined, and an equilibrium character of these processes in the temperature interval from 1000 to 2000 K was demonstrated. Heating to higher temperatures results in the intense thermodesorption of oxygen.
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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 122, No. 2, 2002, pp. 341–346.
Original Russian Text Copyright © 2002 by Gall’, Rut’kov, Tontegode.
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Gall’, N.R., Rut’kov, E.V. & Tontegode, A.Y. Equilibrium processes of oxygen diffusion between bulk and (100) surface of tantalum. J. Exp. Theor. Phys. 95, 294–299 (2002). https://doi.org/10.1134/1.1506437
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DOI: https://doi.org/10.1134/1.1506437