Sample-shape dependence of the spinodals and the diffusion coefficients for hydrogen in niobium and tantalum |
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| Authors: | J. Tretkowski J. Völkl G. Alefeld |
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| Affiliation: | (1) Physik-Department, Technischen Universität München, D-8046 Garching bei München, Germany |
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| Abstract: | The spinodals for H in Nb and Ta are measured for wire- and foil-shaped specimens, using the Gorsky effect. A pronounced dependence on sample geometry is found and explained in the scope of the mode theory by Wagner and Horner. Also a shape dependence of the macroscopic diffusion coefficient as predicted by this theory has experimentally been verified. |
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