A Monometric Method For the Determination Of hydrozen in Li-Al Alloys

K G Divekar, R Kalyanaraman, S S Sawanth, M Sundaresan

Abstract


A method, based on the manometric measurements of hydrogen has been described for the determination of total hydrogen in the range 20-200 ppm in 4% Li-Al alloys which are used for the Production of tritium. Because of the highly reactive nature of these alloys to D2, N2 and moisture, an in situ fabrication of the alloy was required for calibration purposes with proper precautions to prevent contamination. Hydrogen was extracted using a molten tin bath at 700° C and standard addition of hydrogen was done in the form of Li0H. Effect of exposure of this alloy to contact with atmosphere was evaluated and some thermo dynamic considerations about the release of hydrogen added.

Keywords


Manometric method; hydrogen; Al—Li alloys; effect of exposure.

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