THE EFFECT OF COOLING ON THE DEVELOPMENT OF COMPOSITION PROFILES IN CU-PT ALLOYS UNDER AR-BOMBARDMENT( ION)

Authors
LI CF KUROKAWA A ASAHATA T SHIMIZU R
Citation
Cf. Li et al., THE EFFECT OF COOLING ON THE DEVELOPMENT OF COMPOSITION PROFILES IN CU-PT ALLOYS UNDER AR-BOMBARDMENT( ION), Surface and interface analysis, 21(1), 1994, pp. 56-60
Citations number
23
Categorie Soggetti
Chemistry Physical
Journal title
Surface and interface analysis → ACNP
ISSN journal
01422421
Volume
21
Issue
1
Year of publication
1994
Pages
56 - 60
Database
ISI
SICI code
0142-2421(1994)21:1<56:TEOCOT>2.0.ZU;2-B
Abstract
The effect of cooling on the development of the altered layer in a Cu- Pt alloy under Ar+ ion bombardment has been studied through the accura te determination of the compositional profiles in the near-surface reg ion by sequential ISS-AES measurements and by a new method. Although t he ISS-AES measurements have not revealed any noticeable difference be tween the composition profiles at about -150 degrees C and room temper ature, a significant difference has been observed using the new method based on He+-ISS monitoring of the surface composition under bombardm ent of mixed (Ar+ + He+) ions, followed by abrupt switching to bombard ment with only He+ ions. The measurement procedures are described in d etail, and the results obtained by both the techniques are discussed.