Abstract
The long-range diffusion (Gorsky effect) of hydrogen and deuterium in vanadium is invesitgated by internal friction measurements in the temperature range from 110 to 930°K; the vibration frequencies are included between 8 and 68 Hz. The diffusion coefficient of hydrogen and deuterium obeys an exponential law in a wide temperature range, the preexponential factors and the activation energies being: D OH = (4.4 ± 1.5) × 10 −4 cm 2 sec , D OD = (3.1 ± 0.8) × 10 −4 cm 2 sec , W H = (0.059 ± 0.007) eV, W D = (0.073 ± 0.006) eV .
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