Barrier energy for the b. c. c.-f. c. c. martensitic transition in sodium
- 1 January 1983
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 48 (1) , 83-94
- https://doi.org/10.1080/01418618308234888
Abstract
Using an Ashcroft empty-core model pseudopotential, we have calculated the binding energy of the intermediate structures between b. c. c. and f. c. c. sodium at zero temperature for two homogeneous-deformation reaction-path models, namely those of Bain (1924) and Zener (1948). Bain's model gives a lower barrier energy than that of Zener : 9·2 K per atom, much lower than a previous estimate based on the second-order elastic constants.Keywords
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