Browsing by Author "Goodell, Joseph P. N"
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Item Absorption of ultrasonic and hypersonic waves in LiF single crystals(1964) Goodell, Joseph P. N; Roberts, John M.; Brotzen, Franz R.Attenuation of ultrasonic-hypersonic stress waves in LiF single crystals is analyzed. As a mechanism for attenuation the vibrating pinned-dislocation model of Koehler is treated; a resonant peak in attenuation vs frequency was sought. Some other mechanisms, including temperature dependence, are considered. Various causes of modulation of the exponential decay of the acoustic wave are discussed.