Premium
Auger quantitative analysis of brass via target factor analysis
Author(s) -
Calliari L.,
Gonzo L.,
Micheli V.,
Tiscione P.
Publication year - 1994
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.740210810
Subject(s) - brass , auger , alloy , interference (communication) , analytical chemistry (journal) , metallurgy , surface (topology) , auger electron spectroscopy , materials science , energy (signal processing) , energy spectrum , chemistry , atomic physics , physics , copper , electrical engineering , nuclear physics , channel (broadcasting) , geometry , mathematics , chromatography , quantum mechanics , engineering
The composition of a brass alloy is determined through target factor analysis (TFA) of Auger data. In spite of spectral interference between Cu and Zn transitions, quantitative information is derived from both the low‐energy and the high‐energy part of the brass spectrum. From the less surface‐sensitive high‐energy region, the nominal composition of the alloy is recovered, whereas from the more surface‐sensitive low‐energy region a definitely higher Zn/Cu ratio is found. This is interpreted in terms of surface segregation of Zn brought about by in situ scribing for surface cleaning.