| Numéro |
J. Phys. Colloques
Volume 42, Numéro C5, Octobre 1981
ICIFUAS-7Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids |
|
|---|---|---|
| Page(s) | C5-817 - C5-822 | |
| DOI | https://doi.org/10.1051/jphyscol:19815127 | |
ICIFUAS-7
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-817-C5-822
DOI: 10.1051/jphyscol:19815127
1 Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Stuttgart, F.R.G.
2 Institute of Metal Research, Academia Sinica, Shenyang, China
Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 42 (1981) C5-817-C5-822
DOI: 10.1051/jphyscol:19815127
THE SNOEK RELAXATION IN TANTALUM AND NIOBIUM WITH RELATIVELY HIGH CONCENTRATIONS OF OXYGEN
M. Weller1, J.X. Zhang2, K. Schulze1, T.S. Kê2 et J. Diehl11 Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Stuttgart, F.R.G.
2 Institute of Metal Research, Academia Sinica, Shenyang, China
Abstract
The internal friction (IF) of tantalum and niobium doped with different amounts of oxygen (0.1-0.7 at.%) was studied with an inverted torsion pendulum. With increasing 0 contents we observed in a (1/T)-plot a symmetrical broadening of the IF peak and a shift to slightly higher temperatures. This is in contrast to earlier studies of these alloys in which the existence of 0 agglomeration (pairs, triplets etc.) was suggested from the assumption of an asymmetrical broadening of the IF peak. A physical model to explain these results has to be developed.