Single-crystal elastic constants of Al/sub 2/Cu
Journal Article
·
· J. Appl. Phys.; (United States)
The single-crystal elastic constants of tetragonal Al/sub 2/Cu have been measured over the temperature range 4.2--300 K by the pulse-echo-overlap technique. The directly measured constants show a normal monotonic decrease in magnitude with increasing temperature but with C/sub 4/4 showing the least change. The anisotropy ratios C/sub 3/3/C/sub 1/1, C/sub 1/2/C/sub 1/3, and C/sub 4/4/C/sub 6/6 show only small percentage changes between 4.2 and 300 K, but 2C/sub 4/4/(C/sub 1/1-C/sub 1/2) changes by nearly a factor of 2. Comparison of data for Zr/sub 2/Ni with that for Al/sub 2/Cu indicates some importance of atomic size effects. A Debye temperature of 402 K was evaluated from the elastic constants at 4.2 K.
- Research Organization:
- Ames Laboratory: ERDA and Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
- OSTI ID:
- 6850595
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:6; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
COPPER ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DEBYE TEMPERATURE
ELASTICITY
MECHANICAL PROPERTIES
MONOCRYSTALS
SOUND WAVES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
TETRAGONAL LATTICES
ULTRASONIC WAVES
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
COPPER ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DEBYE TEMPERATURE
ELASTICITY
MECHANICAL PROPERTIES
MONOCRYSTALS
SOUND WAVES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
TETRAGONAL LATTICES
ULTRASONIC WAVES