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Published in:
1992 | OriginalPaper | Chapter
Diffusion in Exotic Intermetallics
Authors : G. Frohberg, H. Wever
Published in: Ordered Intermetallics — Physical Metallurgy and Mechanical Behaviour
Publisher: Springer Netherlands
Included in: Professional Book Archive
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The experimental data for A-diffusion (A=Ni) and for B-diffusion (B=Sb, Sn, In) in A/B-alloys with the B82-structure have been compared with a number of possible diffusion mechanisms. The diffusion behaviour is well understood in terms of a main diffusion mechanism, using the double tetrahedral interstices in the case of A-diffusion, and a pure vacancy mechanism in the B-sublattice for B-diffusion. Minority mechanisms explain the temperature variation of the D┴/D‖-ratio.