New high-pressure phase transition in zirconium metal

Journal Article · Sun Jan 07 23:00:00 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]

---

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), Journal Name: Physical Review Letters; (USA) Vol. 64:2; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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