Abstract

Electron Auger spectroscopy is used to study the surface segregation of gallium in diluted solid solutions of Al–Ga with volume concentrations of 1.1, 2.4, 4.2, 7.4 wt % Ga at temperatures of room temperature to 573 K. Considerable segregation of gallium is observed for all of the studied alloys. Values obtained for the surface concentration of Ga are used to construct the dependence of the energy of segregation on the surface concentration of Ga atoms at different temperatures

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