Characterization of a chromate-inhibited primer by doppler broadening energy spectroscopy

F. H. Scholes*, S. A. Furman, A. E. Hughes, A. J. Hill, F. Tuomisto, K. Saarinen, S. J. Pas

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

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 languageEnglish
Pages (from-to)105-108
Number of pages4
JournalJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
Volume3
Issue number2
DOIs
Publication statusPublished - Apr 2006
MoE publication typeA1 Journal article-refereed

Keywords

  • Aerospace
  • Aircraft
  • Aluminum
  • Application characteristics
  • Corrosion
  • Corrosion protection
  • Physical properties
  • Surface analysis

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