Numéro
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
Page(s) C6-184 - C6-186
DOI https://doi.org/10.1051/jphyscol:1981654
International Conference on Phonon Physics

J. Phys. Colloques 42 (1981) C6-184-C6-186

DOI: 10.1051/jphyscol:1981654

ULTRASONIC PROPERTIES OF A SUPERIONIC GLASS : B2O3, 0.5 Li2O, 0.7 LiCl

D. Ciplys1 et J.Y. Prieur2

1  Molecular Acoustics Laboratory, University of Vilnius, Knyvos 4a, 232006 Vilnius, Lituany, U.S.S.R
2  Laboratoire d'Ultrasons, Université Pierre et Marie Curie, Tour 13, 4 place Jussieu, 75230 Paris Cedex 05, France


Abstract
We measured the attenuation and the phase velocity variations of longitudinal ultrasonic waves in a superionic glass of composition : B2O3, 0.5 Li2O, 0.7 LiCl. The experimental curves show at least three different mechanisms of sound attenuation. Comparison with the result for a less conductive compound (B2O3, 0.5 Li2O) is done. Two of the mechanisms are attributed to the glassy nature of the compound. One is believed to be due to the superionic properties of the material.