Single-crystal elastic constants of Zr/sub 2/Ni

Journal Article · Mon Dec 01 04:00:00 EST 1975 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.322187· OSTI ID:5000270

Eshelman, F R; Smith, J F

The ultrasonic pulse-echo-overlap technique has been used to determine the six independent elastic constants of tetragonal Zr/sub 2/Ni over the temperature range 4.2 to 300/sup 0/K. The temperature dependence of the shear constants, particularly C/sub 66/, are atypical and indicate a significant degree of mode softening at low temperatures. The results correlate with the recent calculation of Sinha and Harmon in that Zr/sub 2/Ni satisfies their conditions for the development of charge density waves with attendant mode softening and support the view that mode softening and superconductivity are correlated. (AIP)

• Research Organization: Ames Laboratory, United States Energy Resources Development Administration and Department of Materials Science, Iowa State University, Ames, Iowa 50010
• NSA Number: NSA-33-09855
• OSTI ID: 5000270
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 46:12; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CRYSTALS
ELASTICITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INTERMETALLIC COMPOUNDS
MECHANICAL PROPERTIES
MONOCRYSTALS
NICKEL ALLOYS
PHYSICAL PROPERTIES
SOUND WAVES
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
ULTRASONIC WAVES
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS