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

doi:10.1007/s11998-006-0012-7

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 journal › Article › Scientific › peer-review

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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
Pages (from-to)	105-108
Number of pages	4
Journal	JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
Volume	3
Issue number	2
DOIs	https://doi.org/10.1007/s11998-006-0012-7
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

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10.1007/s11998-006-0012-7

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AU - Scholes, F. H.

AU - Furman, S. A.

AU - Hughes, A. E.

AU - Hill, A. J.

AU - Tuomisto, F.

AU - Saarinen, K.

AU - Pas, S. J.

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AB - 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.

KW - Aerospace

KW - Aircraft

KW - Aluminum

KW - Application characteristics

KW - Corrosion

KW - Corrosion protection

KW - Physical properties

KW - Surface analysis

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ER -

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

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