A NEW HIGH PRESSURE PHASE OF THE TRANSITION METAL ZIRCONIUM

10 May 1990

journal article
Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters B

Vol. 4 (9) , 585-590
https://doi.org/10.1142/s0217984990000738

Abstract

High pressure energy dispersive X-ray diffraction studies were carried out on the group IV transition metal zirconium (Zr) to 32 GPa using a synchrotron source.¹ 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 ± 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 transition metal) under pressure and room temperature signifies a pressure-induced electronic configuration similar to that of a group V transition metal.

Keywords

PHYSICAL PROPERTIES
FIRST PRINCIPLE
ROOM TEMPERATURE
HIGH PRESSURE
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
MATERIALS SCIENCE
SYNCHROTRON RADIATION
FIRST ORDER PHASE TRANSITION
TRANSITION METAL
X RAY DIFFRACTION
ELECTRONIC STRUCTURE
ELECTROMAGNETIC RADIATION

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