Kinetics and systematics of structural phase transitions in the regular lanthanide metals under pressure
- 1 April 1990
- journal article
- research article
- Published by Taylor & Francis in High Pressure Research
- Vol. 2 (4) , 193-236
- https://doi.org/10.1080/08957959008203173
Abstract
Techniques and results of studies on the kinetics and hysteresis of the structural phase transitions in lanthanides under pressures up to 58 GPa and temperatures between 200 K and 520 K are presented. The transformation rates show the same time dependence as for diffusion controlled transitions, however, other interpretations of this time dependence are also possible. Estimates of the 0 K equilibrium transition pressures are derived from the pressure and temperature dependence of the activation free energies A, G. A comparison of critical radius ratios, Rux/R5p for all the regular lanthanides at the various phase transitions shows simple systematics in the high pressure behaviour of the lanthanides.Keywords
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