Self-diffusion and solute diffusion of gold in F.C.C. lanthanum
- 1 May 1969
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 19 (161) , 1053-1059
- https://doi.org/10.1080/14786436908225869
Abstract
The thin layer lathe sectioning technique was used to measure the self and solute diffusion coefficients of gold in f.c.c. lanthanum. Self-diffusion is given by D = 1.5 exp (− 45100/RT) cm2/sec, and gold solute diffusion by D = 2.2 × 10−2 exp (− 18100/RT) cm2/sec. The activation energy for self-diffusion is in good agreement with various semi-empirical rules. The high diffusivities and low activation energy for the solute diffusion of gold are interpreted in terms of the combined substitutional–interstitial diffusion mechanism.Keywords
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