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Tracer diffusion coefficients in molten salts—I. Methods

✍ Scribed by K. Grjotheim; T. Naterstad; K.E. Torklep; H.A. Øye

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
540 KB
Volume
23
Category
Article
ISSN
0013-4686

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✦ Synopsis

Two different methods for determination of tracer dilfusion coefficients in molten salts are presented. Both methods were based on the theory related to diffusion of instantaneously applied. infinitely thin radioactive sources in semi-infinite one-dimensional diffusion media.

In the first method, the melt was absorbed in sintered. porous MgO-strips. The labyrinth factors for these "Impregnated Self-supporting Strips" (1%) were known from calibration measurements.

The second method used was a direct method. In this case the melt was kept as a "Cylindrical Thin Layer" (CTL) of thickness 0.025JJ.030 cm in a graphite crucible facilitating effective quenching of the melt after the experiment.

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