Abstract
The concentration dependence of the diffusion coefficient of H and D in Nb and Ta in theα andα′ phases has been measured between 0 and 40% H or D/Nb or Ta by the Gorsky effect. Since this method allows to determine simultaneously the thermodynamic factor, the tracer-diffusion coefficient can be extracted from the data. An increase of the activation energy as a function of concentration has been found for all four systems. Whereas for Ta the isotope dependence of the diffusion coefficients continues to exist at high concentrations it surprisingly disappears for Nb.
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Tretkowski, J., Völkl, J., Alefeld, G.: Z. Naturf.26a, 588 (1971)
Völkl, J.: Ber. Bunsenges. physikal. Chem.76, 797 (1972)
Völkl, J., Alefeld, G.: Nuovo Cim.33B, 190 (1976)
Schnabel, D., Alefeld, G.: Collective Phenomena2, 29 (1975)
Wagner, H., Horner, H.: Adv. Phys.23, 587 (1974)
Horner, H., Wagner, H.: J. Phys. C.: Solid State Phys.7, 3305 (1974)
Bausch, R., Horner, H., Wagner, H.: J. Phys. C: Solid State Phys.8, 2559 (1975)
Janssen, H.-K.: Z. Physik B23, 245 (1976)
Alefeld, G., Völkl, J., Schaumann, G.: phys. stat. sol.37, 337 (1970)
Tretkowski, J., Völkl, J., Alefeld, G.: Z. Physik B28, 259 (1977)
Zener, C.: Elasticity and Anelasticity of Metals. Chicago: Univ. of Chicago Press 1948
Lacher, J.R.: Proc. Roy. Soc. A161, 525 (1937)
Schaumann, G., Völkl, J., Alefeld, G.: phys. stat. sol.42, 401 (1970)
Tretkowski, J.: Jül-Bericht Jül-1049-FF (1974)
Tretkowski, J.: Jül-Bericht Jül-626-FN (1969)
Bauer, H.C.: Diploma Thesis, Techn. Univ. München (1975)
Walter, R.J., Chandler, W.T.: Trans. Met. Soc. AIME233, 762 (1965)
Zabel, H., Peisl, H.: phys. stat. sol. (a)37, K 67 (1976)
Bauer, H.C., Tretkowski, J., Völkl, J., Freudenberg, U., Alefeld, G.: Z. Physik B28, 255 (1977)
Wicke, E., Obermann, A.: Z. physikal. Chem. N.F.77, 163 (1972)
Züchner, H.: Z. physikal. Chem. N.F.82, 240 (1972)
Magerl, A., Berre, B., Alefeld, G.: phys. stat. sol. (a)36, 161 (1976)
Gissler, W., Alefeld, G., Springer, T.: J. Phys. Chem. Solids31, 2361 (1970)
Zogał, O.J., Cotts, R.M.: Phys. Rev. B11, 2443 (1975)
Birchall, J.H.L., Ross, D.K.: Jül-Bericht Jül-Conf-6 (Vol I), 313 (1975)
Lütgemeier, H., Arons, R.R., Bohn, H.G.: J. Magn. Resonance8, 74 (1972)
Cotts, R.M.: Topics in Applied Physics: Hydrogen in Metals (Eds. Alefeld, G. and Völkl, J.) Berlin-Heidelberg-New York: Springer, to be published
Rush, J.J., Livingston, R.C., de Graaf, L.A., Flotow, H.E., Rowe, J.M.: J. Chem. Phys.59, 6570 (1973)
Kehr, K.W.: Jül-Bericht Jül-1211 (1975) and Topics in Applied Physics: Hydrogen in Metals (Eds. Alefeld, G. and Völkl, J.) Berlin-Heidelberg-New York: Springer, to be published
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Bauer, H.C., Völkl, J., Tretkowski, J. et al. Diffusion of hydrogen and deuterium in Nb and Ta at high concentrations. Z Physik B 29, 17–26 (1978). https://doi.org/10.1007/BF01354833
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DOI: https://doi.org/10.1007/BF01354833