Applications of fourier transform infrared spectroscopy to surface analysis problems 2
- Oak Ridge Y-12 Plant, TN (United States)
- Harrick Scientific, Inc., Ossining, NY (United States)
Applications of infrared spectroscopy to surface analysis are described in terms of the combined use of a number of techniques to solve specific surface analysis problems involving both qualitative and quantitative analysis of surface species. Emphasis is placed on the characterization of both the substrate and the surface species and the application of this to the monitoring of surface processes and the inspection of manufactured items. Lithium Hydride has been studied using remote analysis by diffuse reflectance in glove boxes containing very pure argon or controlled moisture levels with robot-operated gravimetric monitoring. These experiments are supported by internal reflectance and diffuse reflectance measurements in spectrometer sample compartments to characterize the reactants. Beryllium oxide has been studied using an evacuable diffuse reflectance cell to determine the effects of vacuum baking reexposure to moisture on the surface hydroxyl species. Diffuse reflectance and emission measurements have been used to monitor the curing and reaction of environmental gases with composite materials such as graphite-expoxy structures. A direct comparison of diffuse reflectance and emission spectra was done using a barrel ellipsoid diffuse reflectance/emission detector and Spectropus optical transfer system. Grazing-incidence external-reflectance with p-polarized light was used to study the oxidation in room air of polished uranium coupons. The absorption band at 570 cm{sup {minus}1} was used to monitor the extent of oxidation with a resolution of approximately one monolayer of UO{sub 2} and to distinguish the parabolic, linear, and breakaway corrosion domains. External reflectance is compared with diffuse reflectance as a method for stain analysis and for measuring the effects of H{sub 2}O in UO{sub 2} corrosion films.
- Research Organization:
- Oak Ridge Y-12 Plant, TN (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OS21400
- OSTI ID:
- 5759193
- Report Number(s):
- Y/DZ-748/R1; CONF-9110322-1-Vugraphs; ON: DE92006668
- Resource Relation:
- Conference: 17. Department of Energy (DOE) surface studies conference, Livermore, CA (United States), 15-18 Oct 1991
- Country of Publication:
- United States
- Language:
- English
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FOURIER TRANSFORM SPECTROMETERS
USES
LITHIUM HYDRIDES
SURFACE PROPERTIES
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REFLECTIVITY
SPECTROSCOPY
SURFACES
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HYDRIDES
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