New high-pressure phase transition in zirconium metal

Journal Article · Mon Jan 08 00:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.204· OSTI ID:7010893

Xia, H; Duclos, S J; Ruoff, A L; Vohra, Y K ^[1]

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1. Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853 (USA)

Phase transitions in the group-IV transition-metal zirconium were studied by the energy-dispersive x-ray-diffraction technique with a synchrotron source to a pressure of 32 GPa. A first-order phase transition between an {omega} phase and a bcc phase (isostructural with group-V transition elements) was observed during compression and decompression in a pressure range of 30{plus minus}2 GPa, which is in qualitative agreement with the recent first principles theoretical predictions. The observation of the bcc phase in Zr (a group-IV element) under pressure at room temperature signifies a pressure-induced electronic configuration similar to that of a group-V element.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7010893
• Journal Information: Physical Review Letters; (USA), Vol. 64:2; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ZIRCONIUM
CRYSTAL-PHASE TRANSFORMATIONS
BCC LATTICES
COMPRESSION
CORRELATIONS
EQUATIONS OF STATE
HCP LATTICES
HEXAGONAL LATTICES
LIGHT SOURCES
MEDIUM TEMPERATURE
OPTICAL DISPERSION
PRESSURE DEPENDENCE
SYNCHROTRON RADIATION
VERY HIGH PRESSURE
X-RAY DIFFRACTION
BREMSSTRAHLUNG
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELEMENTS
EQUATIONS
METALS
PHASE TRANSFORMATIONS
RADIATION SOURCES
RADIATIONS
SCATTERING
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies