Abstract
The formulation of the statistical mechanics of the α-α′ phase transition in hydrogenmetal-systems is extended in such a way as to include the elastic anisotropy of the host crystal. The corresponding reduction of symmetry leads to qualitative modifications of the results. Depending on hydrogen concentration and temperature, phases with homogeneous,C 3- andC′ 2-symmetric equilibrium hydrogen distributions are formed. The transitions between these phases are investigated, and the relation of their orders and the corresponding changes in symmetry is studied. Differences between isotropic and anisotropic systems are discussed.
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Hirsekorn, R.P., Siems, R. Theα-α′ phase transition of hydrogen in elastically anisotropic cubic metals. Z. Physik B - Condensed Matter 57, 225–231 (1984). https://doi.org/10.1007/BF01318415
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DOI: https://doi.org/10.1007/BF01318415