Abstract
A chromate-inhibited primer has been characterized by Doppler broadening energy spectroscopy (DBES), scanning electron microscopy (SEM), and Raman spectroscopy. The S-parameter obtained by DBES exhibited a three-layer depth profile, which is attributed to the presence of a "skin" layer in the polymer matrix of the primer and a concentration gradient in the inorganic phases distributed through the primer. The primer was also examined by DBES following immersion in solution. The change observed in the S-parameter upon immersion indicated water filling the molecular free volumes in the primer. The ability to monitor the depth of water uptake as a function of immersion time illustrates that the primer does not need to be fully saturated for chromate release to occur.
Original language | English |
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Pages (from-to) | 105-108 |
Number of pages | 4 |
Journal | JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH |
Volume | 3 |
Issue number | 2 |
DOIs | |
Publication status | Published - Apr 2006 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Aerospace
- Aircraft
- Aluminum
- Application characteristics
- Corrosion
- Corrosion protection
- Physical properties
- Surface analysis