- Author
-
Nguyen, T.
|
Byrd, W. E.
|
Lin, C.
|
Bentz, D.
- Title
- Novel Spectroscopic Technique for In-Situ Studies of Water at the Interface Between a Metal and an Opaque Polymeric Film.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Journal
-
Advanced Composite Materials,
1051-1060,
1991
- Keywords
-
water
|
films
|
infrared spectroscopy
|
coatings
|
metals
|
FT-IR
|
exposure time
- Abstract
- A technique was developed based on Fourier transform infrared spectroscopy - multiple internal reflection (MIR-FTIR) for measuring water in situ at the coating/metal interface. The method requires direct application of a transparent or opaque polymeric coating of any thickness to a metal-free or metal-coated internal reflection element (IRE). A water chamber was attached to the organic coating side of the coated IRE and water was introduced through the chamber inlet. MIR-FTIR spectra were taken automatically at specified exposure time intervals without readjustment of the ATR accessory and without disturbing the specimens and conditions of the experiment. The method was found useful for determining the thickness of the water layer at the coating/metal interface and its change as a function of exposure time.