LiOH corrosion growth and thermal stability investigated by diffuse reflectance infrared Fourier Transform (DRIFT) spectroscopy
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
In this period, we have measured the kinetics of LiOH corrosion growth on LiH substrate at 35 ppm of moisture for over 2 months. The serial DRIFT spectra are being analyzed to build the growth kinetics for LiOH interfacial states, surface states, and bulk states. Physical chemistry insight is being employed to describe the observed parabolic-linear growth of the corrosion layer grown on LiH samples that have been previously vacuum baked then re-exposed to low moisture over a long time. The thermal stabilities of LiOH interfacial states, surface states, and bulk states are also being quantified by measuring the reduction in LiOH DRIFT signals as a function of vacuum level and temperature, and will be needed to add an on/off switch to the current outgassing modeling.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1544959
- Report Number(s):
- LLNL-TR-769949; 961480
- Country of Publication:
- United States
- Language:
- English
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