Elasticity of W-Phase Zirconium

Journal Article · Mon Jan 01 04:00:00 EST 2007 · Physical Review B: Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.76.144107· OSTI ID:960011

Liu, W; Li, B; Wang, L; Zhang, J; Zhao, Y

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.

• Research Organization: Brookhaven National Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: Doe - Office Of Science
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 960011
• Report Number(s): BNL--82997-2009-JA
• Journal Information: Physical Review B: Condensed Matter and Materials Physics, Journal Name: Physical Review B: Condensed Matter and Materials Physics Journal Issue: 14 Vol. 76; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CALIBRATION
ELASTICITY
ELECTRON TRANSFER
INTERFEROMETRY
SHEAR
STRAINS
SYNCHROTRONS
ULTRASONIC WAVES
VELOCITY
X RADIATION
ZIRCONIUM
national synchrotron light source