DETERMINATION AND APPLICATION OF THE DIFFUSION COEFFICIENT FOR HYDROGEN IN URANIUM AT 800 C
- Resource Type
- Journal Article
- Authors
- Source
- Nuclear Sci. and Eng.; Vol: 11; Other Information: Orig. Receipt Date: 31-DEC-62
- Subject
- CHEMISTRY CLEANING
DEGASSING
DIFFUSION
EQUATIONS
ERRORS
GAS FLOW
HIGH TEMPERATURE
HYDROGEN
QUANTITATIVE ANALYSIS
RODS
SAMPLING
SOLUBILITY
URANIUM
USES
- Language
- English
A diffusion coefficient for hydrogen in ingot uranium was determined at 800 deg C on 1-in. long slug blanks. A value of 14.2 x 10/sup -5/cm/sup 2/sec was obtained from 15 determinations. The precision of the average value at the 95% confidence level was plus or minus 3.6%. Three methods of cleaning (preparatory to analysis) were employed, no bias being detected among them. An equation was used to calculate the total gas dissolved in a sample by measuring the gas evolved after a short time and using the diffusion coefficient. In a comparison of the total evolved gas (3-hr extraction) with the calculated total gas (1/2-hr extraction), an error of < plus or minus 2% was obtained from 15 samples. (auth)