Phase transition in pyroxenite under shock loading

Shock loading of natural pyroxenite samples and synthetic pyroxene samples sintered from a mixture of oxides with stoichiometry Mg 0.9 Fe 0.1 SiO 3 was investigated. X-ray analysis of the recovered material was performed. Particle velocity profiles recorded by laser interferometry indicate the exist...

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Bibliographic Details
Published in:Combustion, explosion, and shock waves explosion, and shock waves, 2013-05, Vol.49 (3), p.367-373
Main Authors: Bordzilovskii, S. A., Karakhanov, S. M., Turkin, A. I., Yunoshev, A. S., Titov, V. M.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Classical Mechanics
Combustion
Compressing
Control
Dynamical Systems
Engineering
Explosions
Oxides
Phase transformations
Physical Chemistry
Physics
Physics and Astronomy
Shock loading
Sound velocity
Stoichiometry
Vibration
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Summary:Shock loading of natural pyroxenite samples and synthetic pyroxene samples sintered from a mixture of oxides with stoichiometry Mg 0.9 Fe 0.1 SiO 3 was investigated. X-ray analysis of the recovered material was performed. Particle velocity profiles recorded by laser interferometry indicate the existence of a phase transition at a pressure of ≈60 GPa. At this pressure, the Lagrangian sound velocity in the shock-loaded samples of natural pyroxenite is 13.9 km/s. From an evaluation of the compression, the Eulerian sound velocity is 9.4 km/s.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508213030143