Abstract
Stringer and Rosenfield1 have recently calculated some activation energies for diffusion of oxygen in transition metals, which were not otherwise available. One of these metals was tungsten. In a plot of activation energy versus melting point of the solvent, the authors attempted to show that tungsten and other metals dissolving less than about 1 per cent oxygen lay on a straight line through the origin; while those metals dissolving more than about 1 per cent oxygen fell on a straight line, which did not pass through the origin and which had a small negative slope. The line through the origin was supposed to be indicative of a normal lattice distortion mechanism and the other line an ionization mechanism.
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References
Stringer, J., and Rosenfield, A. R., Nature, 199, 337 (1963).
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Metals Handbook, eighth ed., 1 (Amer. Soc. Metals, 1961).
Mallett, M. W., Albrecht, W. M., and Wilson, P. R., J. Electrochem. Soc., 100, 103 (1953).
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Powers, R. W., and Doyle, M. V., J. App. Phys., 30, 514 (1959).
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JACOBS, A. Diffusion of Oxygen in Tungsten and some other Transition Metals. Nature 200, 1310–1311 (1963). https://doi.org/10.1038/2001310a0
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DOI: https://doi.org/10.1038/2001310a0
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