OXYGEN DIFFUSION AND VAPORIZATION RATES FOR LIQUID AND SOLID GERMANIUM DIOXIDE
Journal Article
·
· Journal of Applied Physics (U.S.)
The reate of exhange with oxygen enriched to 3% O/sup 18/ was determined at a gas pressure of 150 mm Hg for polycrystalline hexagonal GeO/sub 2/. Results indicated that the exchange followed kinetics expected for a diffusion-controlled process. In liquid GeO/sub 2/ the oxygen exchange rate was found to be proportional to the square root of the time. The vaporization rates are such that a major mechanism of O/sup 18/ depletion from the gas phase at temperatures above 1200 deg C is exchange at the surface followed by evaporation. The oxygen diffusion coefficients were calculated. (C.E.S.)
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-037182
- OSTI ID:
- 4636691
- Journal Information:
- Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 34; ISSN JAPIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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