AUBER QUANTITATIVE-ANALYSIS OF BRASS VIA TARGET FACTOR-ANALYSIS

Citation
L. Calliari et al., AUBER QUANTITATIVE-ANALYSIS OF BRASS VIA TARGET FACTOR-ANALYSIS, Surface and interface analysis, 21(8), 1994, pp. 571-575
Citations number
15
Categorie Soggetti
Chemistry Physical
ISSN journal
01422421
Volume
21
Issue
8
Year of publication
1994
Pages
571 - 575
Database
ISI
SICI code
0142-2421(1994)21:8<571:AQOBVT>2.0.ZU;2-E
Abstract
The composition of a brass alloy is determined through target factor a nalysis (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 th e less surface-sensitive high-energy region, the nominal composition o f the alloy is recovered, whereas from the more surface-sensitive low- energy region a definitely higher Zn/Cu ratio is found. This is interp reted in terms of surface segregation of Zn brought about by in situ s cribing for surface cleaning.