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Elastic phase transitions in metals at high pressures

, , ,
National University of Science and Technology "MISIS", Leninskiiprosp. 4, Moscow, 119049, Russian Federation

Crystalline lattice can become unstable to the uniform shear strains which may lead to a structural transformation to less symmetric structures. The transitions of these types were called the elastic phase transitions. In the present paper the 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 the first order elastic phase transition are given. As an example the structural transformation in vanadium which is experimentally observed at P ≈ 69 GPa, and a possibility of the structural transformation in molybdenum at P higher than 700 GPa are analyzed.

Fulltext is available at IOP
PACS: 61.50.Ks, 61.66.Bi, 62.20.D−, 62.50.−p (all)
DOI: 10.3367/UFNe.0184.201409d.0967
URL: https://ufn.ru/en/articles/2014/9/d/
Citation: Vekilov Yu Kh, Krasil’nikov O M, Belov M P, Lugovskoy A V "Elastic phase transitions in metals at high pressures" Phys. Usp. 57 897–902 (2014)
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Received: 3rd, December 2013, revised: 19th, December 2013, 20th, December 2013

:   ,   ,   ,    «   » 184 967–973 (2014); DOI: 10.3367/UFNr.0184.201409d.0967

References (34) Cited by (6) Similar articles (4) ↓

  1. Yu.Kh. Vekilov, O.M. Krasil’nikov, A.V. Lugovskoy “Elastic properties of solids at high pressure58 1106–1114 (2015)
  2. Yu.Kh. Vekilov, O.M. Krasil’nikov “Structural transformations in metals at high compression ratios52 831–834 (2009)
  3. Z.G. Bazhanova, V.V. Roizen, A.R. Oganov “High-pressure behavior of the Fe—S system and composition of the Earth's inner core60 1025–1032 (2017)
  4. Ya.M. Blanter, M.I. Kaganov, D.V. Posvyanskii “De Haas-van Alphen effect as a first-order electronic topological transition38 203–209 (1995)

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