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Oxygen and Carbon Effect on the Segregation Energy of Be on Cu-4at.%-Be Alloy Surface
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Abstract
Auger electron spectroscopy (AES) has been used to study the Be segregation on the Cu-4%at.Be alloy surface. This segregation has been studied in the presence of both chemisorbed oxygen and carbon impurity. The layer of Be formed, on the surface, by Gibbsian segregation has been followed. Its thickness has been found close to that of a monolayer. The activation energy of Be segregation has been determined experimentally and the value found is in agreement with the resulted theoretical one.
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References
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