| Numéro |
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-363 - C5-368 | |
| DOI | https://doi.org/10.1051/jphyscol:1981554 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-363-C5-368
DOI: 10.1051/jphyscol:1981554
1 Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo 152, Japan
2 Faculty of Science, Hiroshima University, Hiroshima 730, Japan
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-363-C5-368
DOI: 10.1051/jphyscol:1981554
PRESSURE DEPENDENCE OF DAMPING CONSTANT OF DISLOCATION MOTION IN CRYSTALS
Y. Hiki1, T. Kosugi1 et T. Kino21 Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo 152, Japan
2 Faculty of Science, Hiroshima University, Hiroshima 730, Japan
Abstract
Ultrasonic attenuation in Harshaw LiF and NaCl crystals in deformed and γ-irradiated states has been measured at 5 ~ 100 MHz under hydrostatic pressure up to 3500 kg/cm2. By analyzing the data on the basis of the vibrating string model of dislocation, the pressure derivative of damping constant for dislocation motion was determined. The results were compared with theories of dislocation damping in crystals and reasonable agreement was obtained.