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Effect of oxygen exposure on Auger spectra
Author(s) -
Sherman Robert
Publication year - 1985
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740070507
Subject(s) - auger , contamination , oxygen , auger electron spectroscopy , grain boundary , spectral line , analytical chemistry (journal) , chemistry , phosphorus , materials science , metallurgy , environmental chemistry , atomic physics , nuclear physics , physics , microstructure , ecology , organic chemistry , astronomy , biology
The effect of residual vacuum contamination on Auger spectra, and subsequently on quantitative analysis, is well known. These effects become especially obvious when measuring the extent of phosphorus grain boundary segregation in the many alloys that require various methods of in situ fracture. To gain insight into the effects of vacuum contamination on the phosphorus Auger signal, we exposed a grain facet to controlled oxygen dosages and monitored the decreasing phosphorus‐to‐iron PPHR as a function of the increasing oxygen‐to‐iron PPHR. This communication reports the results of this experiment and suggests ways to compensate for vacuum contamination.