Quantitative analysis of hydroxyl and boron in S glass-ceramic by Fourier transform infrared spectroscopy
Fourier transform infrared (FT-ir) spectroscopy has been used to analyze hydroxyl and boron content in samples of S glass-ceramic, which is used in making glass-to-metal seals in the MC3753 actuator. Hydroxyl and boron concentrations in S glass-ceramic have a large effect on the final properties of the glass-ceramic. Therefore, a rapid and accurate method of analysis for these components is desirable for process monitoring. Our studies have found a direct correlation between OH content and bubble formation in S glass-ceramic which has been used to identify critical manufacturing parameters necessary for eliminating bubble formation in the S glass-ceramic during formation of glass-to-metal seals. A lower energy absorption band in S glass-ceramic near 2685 cm/sup -1/ due to the first overtone of the B-O stretching vibration was used to determine boron concentration. Although the accuracy is slightly lower using FT-ir, it is a much more rapid technique than ion chromatography exclusion for the analysis of boron in S glass-ceramic and thus is more appropriate for measurements on large numbers of samples. 15 refs., 6 figs., 4 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5104933
- Report Number(s):
- SAND-85-0738; ON: DE86001148
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BORON
QUANTITATIVE CHEMICAL ANALYSIS
CERAMICS
BUBBLES
INFRARED SPECTRA
GLASS
HYDROXIDES
ANIONS
EXPERIMENTAL DATA
FOURIER TRANSFORM SPECTROMETERS
MOISTURE
POROSITY
SEALS
THERMAL EXPANSION
VIBRATIONAL STATES
CHARGED PARTICLES
CHEMICAL ANALYSIS
DATA
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXPANSION
HYDROGEN COMPOUNDS
INFORMATION
IONS
MEASURING INSTRUMENTS
NUMERICAL DATA
OXYGEN COMPOUNDS
SEMIMETALS
SPECTRA
SPECTROMETERS
400104* - Spectral Procedures- (-1987)