Research Papers in Physics and Astronomy


Date of this Version

December 1984


Published by American Physical Society. Copyright 1984. Permission to use. Phys. Rev. B30 (1984) 7278–7280.


Copper segregation profiles at the surfaces of Cu17Ni83(111) and Cu17Ni83(100) have been calculated by a semiempirical procedure based upon previously published data. These profiles indicate that surface enrichment of copper is not limited only to the topmost layer but occurs for several layers away from the surface as well. A comparison of the calculated segregation profiles based upon the experimental results for the (100) and (111) surfaces of Cu17Ni83 do not agree with predictions based upon thermodynamic models of segregation.

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