Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression

Bastea, M; Reisman, D

doi:10.1063/1.2732831

Title: Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression

Journal Article · Mon Feb 12 00:00:00 EST 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2732831· OSTI ID:908900

Bastea, M; Reisman, D

We report the first experimental observation of sequential, multiple polymorphic phase transformations occurring in Praseodymium dynamically compressed using a ramp wave. The experiments also display the signatures of reverse transformations occuring upon pressure release and reveal the presence of small hysteresys loops. The results are in very good agreement with equilibrium hydrodynamic calculations performed using a thermodynamically consistent, multi-phase equation of state for Praseodymium, suggesting a near-equilibrium transformation behavior.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 908900

Report Number(s):: UCRL-JRNL-228113; APPLAB; TRN: US0703794

Journal Information:: Applied Physics Letters, Vol. 90, Issue 17; ISSN 0003-6951

Country of Publication:: United States

Language:: English

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Title: Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression

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References (13)

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