Numéro
J. Phys. Colloques
Volume 46, Numéro C10, Décembre 1985
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
Page(s) C10-359 - C10-362
DOI https://doi.org/10.1051/jphyscol:19851080
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids

J. Phys. Colloques 46 (1985) C10-359-C10-362

DOI: 10.1051/jphyscol:19851080

HIGH-TEMPERATURE INTERNAL-FRICTION PEAK IN 99.999 wt % SINGLE-CRYSTAL ALUMINIUM

C.M. SU and T.S. KÊ

Institute of Solid State Physics, Academia Sinica, Hefei, China


Abstract
An internal-friction peak situated at 365°C (f = 1 Hz) was recently observed by Kê et al. in 99.991 and 99.999 wt % aluminium single crystals prepared by the dynamic-annealing method and was considered as originating from the climbing of dispersive dislocations in aluminium. /1/ In this report, the condition for the appearance and disappearance as well as the pecularities of this 365°C peak were studied systematically with 99.999 wt % aluminium single crystals subjected to various mechanical and thermal treatments.