Features of resonance absorption of longitudinal ultrasound in strained crystals KBr at temperature variations

• Published in: Functional Materials
• Date: 2007
• Main Authors: Petchenko, A.M., Petchenko, G.A.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2007
• Subjects: Characterization and properties
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/136919
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Features of resonance absorption of longitudinal ultrasound in strained crystals KBr at temperature variations / A.M. Petchenko, G.A. Petchenko // Functional Materials. — 2007. — Т. 14, № 4. — С. 475-479. — Бібліогр.: 12 назв. — англ.

The frequency dependence of a dislocation damping decrement of ultrasound in KBr single crystals preliminary strained up to 1 % in the temperature range 77-300 K and frequency range 7.5-217.5 MHz has been investigated. The temperature course of the phonon viscosity coefficient B was determined, whic...