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Title: Elasticity of W-Phase Zirconium

Abstract

Compressional (VP) and shear wave (VS) velocities as well as unit-cell volumes of the {omega} phase of Zr have been measured at high pressure (6.9-10.9 GPa) at room temperature using ultrasonic interferometry in conjunction with synchrotron x radiation. Both VP and VS as well as the adiabatic bulk (KS) and shear (G) moduli exhibit monotonic increase with increasing pressure. Using a finite strain equation of state approach, the elastic bulk and shear moduli and their pressure derivatives are derived from the directly measured velocities and densities, yielding KS0=104.0 (16) GPa, G0=45.1 (9) GPa, KS0'=2.8 (2), and G0'=0.6 (1) independent of pressure calibration. The low pressure dependence of KS0 and G0 may be attributed to the pressure-induced progressive s-d electron transfer in the {omega}-Zr as suggested by previous Raman studies as well as static compressions at high pressure.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
960011
Report Number(s):
BNL-82997-2009-JA
Journal ID: ISSN 0163-1829; PRBMDO; TRN: US1005868
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B: Condensed Matter and Materials Physics; Journal Volume: 76; Journal Issue: 14
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CALIBRATION; ELASTICITY; ELECTRON TRANSFER; INTERFEROMETRY; SHEAR; STRAINS; SYNCHROTRONS; ULTRASONIC WAVES; X RADIATION; ZIRCONIUM; VELOCITY; national synchrotron light source

Citation Formats

Liu,W., Li, B., Wang, L., Zhang, J., and Zhao, Y. Elasticity of W-Phase Zirconium. United States: N. p., 2007. Web. doi:10.1103/PhysRevB.76.144107.
Liu,W., Li, B., Wang, L., Zhang, J., & Zhao, Y. Elasticity of W-Phase Zirconium. United States. doi:10.1103/PhysRevB.76.144107.
Liu,W., Li, B., Wang, L., Zhang, J., and Zhao, Y. Mon . "Elasticity of W-Phase Zirconium". United States. doi:10.1103/PhysRevB.76.144107.
@article{osti_960011,
title = {Elasticity of W-Phase Zirconium},
author = {Liu,W. and Li, B. and Wang, L. and Zhang, J. and Zhao, Y.},
abstractNote = {Compressional (VP) and shear wave (VS) velocities as well as unit-cell volumes of the {omega} phase of Zr have been measured at high pressure (6.9-10.9 GPa) at room temperature using ultrasonic interferometry in conjunction with synchrotron x radiation. Both VP and VS as well as the adiabatic bulk (KS) and shear (G) moduli exhibit monotonic increase with increasing pressure. Using a finite strain equation of state approach, the elastic bulk and shear moduli and their pressure derivatives are derived from the directly measured velocities and densities, yielding KS0=104.0 (16) GPa, G0=45.1 (9) GPa, KS0'=2.8 (2), and G0'=0.6 (1) independent of pressure calibration. The low pressure dependence of KS0 and G0 may be attributed to the pressure-induced progressive s-d electron transfer in the {omega}-Zr as suggested by previous Raman studies as well as static compressions at high pressure.},
doi = {10.1103/PhysRevB.76.144107},
journal = {Physical Review B: Condensed Matter and Materials Physics},
number = 14,
volume = 76,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}