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Journal of Materials Science

, Volume 30, Issue 20, pp 5166–5172 | Cite as

Surface segregation of arsenic in iron

  • P. J. Godowski
  • D. Costa
  • P. Marcus
Article

Abstract

The surface of polycrystalline iron covered by segregated arsenic, phosphorus and sulphur was analysed in a combined electron spectroscopic study by means of Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS). The saturation coverage of arsenic at 1033 K was determined as 0.33±0.02 monolayer. Sulphur, arsenic and phosphorus segregate in competition. A relation giving the surface coverage from the XPS intensity of adsorbed element is deduced from the experiments and is also calculated. Experimental and calculated values are found to be in relatively good agreement.

Keywords

Iron Polymer Sulphur Phosphorus Arsenic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • P. J. Godowski
    • 1
  • D. Costa
    • 1
  • P. Marcus
    • 1
  1. 1.Laboratoire de Physico-Chimie des Surfaces, CNRS URA 425Ecole Nationale Superieure de Chimie de ParisParisFrance

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