Methodological notes

Elastic phase transitions in metals at high pressures

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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
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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PT Journal Article
TI Elastic phase transitions in metals at high pressures
AU Vekilov Yu Kh
FAU Vekilov YK
AU Krasil’nikov O M
FAU Krasil’nikov OM
AU Belov M P
FAU Belov MP
AU Lugovskoy A V
FAU Lugovskoy AV
DP 10 Sep, 2014
TA Phys. Usp.
VI 57
IP 9
PG 897-902
RX 10.3367/UFNe.0184.201409d.0967
SO Phys. Usp. 2014 Sep 10;57(9):897-902

Received: 3rd, December 2013, revised: 19th, December 2013, 20th, December 2013

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

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