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- Title
<sup>18</sup>O distributions in porous anodic alumina by plasma profiling time-of-flight mass spectrometry and nuclear reaction analysis.
- Authors
Baron Wiecheć, A.; Tempez, A.; Skeldon, P.; Chapon, P.; Thompson, G. E.
- Abstract
A comparison is made between plasma profiling time-of-flight mass spectrometry (PP-TOFMS) and nuclear reaction analysis (NRA) for depth profiling of 18O tracer in porous anodic oxide films on aluminum. The films were formed galvanostatically, for a range of times, using phosphoric acid electrolytes that were either enriched in 18O or of the natural isotopic concentration. The morphologies of the films were determined by electron microscopy. The findings from PP-TOFMS and NRA reveal a partitioning of the tracer between the surface regions and buried layers of the films. However, a relatively high background of 16O in PP-TOFMS prevents a reliable quantification of the concentration of 18O. Copyright © 2012 John Wiley & Sons, Ltd.
- Publication
Surface & Interface Analysis: SIA, 2012, Vol 44, Issue 10, p1346
- ISSN
0142-2421
- Publication type
Article
- DOI
10.1002/sia.5032