| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1470994 | Corrosion Science | 2010 | 5 Pages |
Abstract
The corrosion susceptibility of a cobalt-based magnetic alloy as a function of overcoat film thickness at 20 °C and 50% relative humidity is investigated using atomic force microscopy. The overcoat films include ion beam-deposited nitrogenated carbon (IBDN), and sputter-deposited silicon carbide (SiC) and silicon nitride (SiNx). In all cases, corrosion decreases with increasing overcoat film thickness. The critical overcoat film thickness for corrosion inhibition is approximately 25, 25 and 20 Å for IBDN, SiC and SiNx, respectively. However, larger corrosion particles are found for IBDN and SiC with increasing thickness just below the critical thickness for coverage.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R.J. Waltman, J. Joseph, X.-C. Guo,