Orthorhombic elastic constants of an NbTi/Cu composite superconductor

Journal Article · Sun May 01 04:00:00 EDT 1977 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.323941· OSTI ID:7318375

Ledbetter, H M; Read, D T

Elastic properties of a niobium-titanium-filament copper-matrix composite superconductor were studied experimentally at room temperature. Ultrasonic pulse and resonance measurements showed the material has orthorhombic symmetry and, therefore, nine independent elastic constants. With respect to copper, C/sub 11/, C/sub 22/, and C/sub 33/ are about 7% lower; C/sub 44/, C/sub 55/, and C/sub 66/ are about 15% lower; the off-diagonal elastic constants are the same; and the bulk modulus is about 5% lower. Deviations from isotropic elastic behavior are small.

• Research Organization: Cryogenics Division, Institute for Basic Standards, National Bureau of Standards, Boulder, Colorado 80302
• OSTI ID: 7318375
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 48:5; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
COMPOSITE MATERIALS
COMPRESSIBILITY
COPPER
ELASTICITY
ELEMENTS
FILAMENTS
MECHANICAL PROPERTIES
METALS
NIOBIUM ALLOYS
POISSON RATIO
PULSE TECHNIQUES
SOUND WAVES
SUPERCONDUCTORS
TENSILE PROPERTIES
TITANIUM ALLOYS
TRANSITION ELEMENTS
ULTRASONIC WAVES
WAVE PROPAGATION
YOUNG MODULUS