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

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
908900
Report Number(s):
UCRL-JRNL-228113
Journal ID: ISSN 0003-6951; APPLAB; TRN: US0703794
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters, vol. 90, no. 17, April 26, 2007, pp. 171921; Journal Volume: 90; Journal Issue: 17
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPRESSION; HYDRODYNAMICS; PHASE TRANSFORMATIONS; PRASEODYMIUM; PRESSURE RELEASE; TRANSFORMATIONS

Citation Formats

Bastea, M, and Reisman, D. Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression. United States: N. p., 2007. Web. doi:10.1063/1.2732831.
Bastea, M, & Reisman, D. Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression. United States. doi:10.1063/1.2732831.
Bastea, M, and Reisman, D. Mon . "Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression". United States. doi:10.1063/1.2732831. https://www.osti.gov/servlets/purl/908900.
@article{osti_908900,
title = {Near-equilibrium polymorphic phase transformations in Praseodymium under dynamic compression},
author = {Bastea, M and Reisman, D},
abstractNote = {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.},
doi = {10.1063/1.2732831},
journal = {Applied Physics Letters, vol. 90, no. 17, April 26, 2007, pp. 171921},
number = 17,
volume = 90,
place = {United States},
year = {Mon Feb 12 00:00:00 EST 2007},
month = {Mon Feb 12 00:00:00 EST 2007}
}