Surface cosegregationp phenomena on alloys and steels: Structural features and phase transitions |
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Authors: | C Uebing |
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Institution: | Max-Planck-Institut für Eisenforschung, Postfach 140 444, D-40074, Düsseldorf, Germany |
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Abstract: | In recent years surface cosegregation phenomena have been studied on various alloy and steel surfaces using surface sensitive techniques such as Auger electron spectroscopy (AES), x-ray photoelectron spectroscopy (XPS), x-ray photoelectron diffraction (XPD) and low energy electron diffraction (LEED). Surface cosegregation causes the formation of two-dimensional surface compounds which may be stabilized by epitaxy on substrate surfaces of suitable structure and orientation. It has been found that in many cases surface compounds undergo phase transitions which are reviewed in this short report. |
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