| Issue |
J. Phys. Colloques
Volume 46, Number C10, Décembre 1985
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
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|---|---|---|
| Page(s) | C10-489 - C10-491 | |
| DOI | https://doi.org/10.1051/jphyscol:198510109 | |
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 46 (1985) C10-489-C10-491
DOI: 10.1051/jphyscol:198510109
Purdue University, West Lafayette, IN 47907, U.S.A.
J. Phys. Colloques 46 (1985) C10-489-C10-491
DOI: 10.1051/jphyscol:198510109
ULTRASONIC ATTENUATION AND VELOCITY IN (AgI)x (AgPO3)1-x GLASSES
R. BOGUE, R.J. SLADEK and C. LIUPurdue University, West Lafayette, IN 47907, U.S.A.
Abstract
We have measured the attenuation, α, and velocity, v, of ultrasonic waves in (AgI)x(AgPO3)1-x glasses, with x = 0, 0.3, and 0.4, in some range of temperature, T, between 80 K and 360 K. For x = 0.3 and 0.4 there is a very broad, double or lop-sided attenuation peak and velocity inflection. The peak is larger and at lower T for x = 0.4, is at a higher T the higher the frequency, and is higher for shear than for longitudinal waves, indicating that relaxation of Ag ions and/or entities involving Ag ions are responsible. The role of structure in our results is discussed also.