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    Elastic phase transitions in metals at high pressures

    Access Status
    Fulltext not available
    Authors
    Vekilov, Y.
    Krasilnikov, O.
    Belov, M.
    Lugovskoy, Andrey
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Vekilov, Y. and Krasilnikov, O. and Belov, M. and Lugovskoy, A. 2014. Elastic phase transitions in metals at high pressures. Physics-Uspekhi. 57 (9): pp. 897-902.
    Source Title
    Physics-Uspekhi
    DOI
    10.3367/UFNe.0184.201409d.0967
    ISSN
    1063-7869
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/7619
    Collection
    • Curtin Research Publications
    Abstract

    Crystalline lattices can become unstable to uniform shear strains, which may lead to a structural transformation to less symmetric structures. Transitions of this type are called elastic phase transitions. In this paper, elastic phase transitions in metals with cubic and hexagonal structures are considered. The relation between the elastic constants of second, third, and fourth order corresponding to the case of a first-order elastic phase transition are given. As an example, the structural transformation in vanadium, which is experimentally observed at P ˜ 69 GPa, and the possibility of structural transformation in molybdenum at P higher than 700 GPa are analyzed.

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