Ultrasonic Attenuation in Alloys
S.K. Kor and R.K. Singh
Department of Physics, University of Allahabad, Allahabad-211 002, India
Received: July 9, 1992; in final form: October 30, 1992
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Ultrasonic attenuation was evaluated in metallic alloys, NixCu1-x (x = 1.00, 0.70, 0.60, 0.45 and 0) due to phonon-phonon (p-p) interaction and thermoelastic loss in a wide temperature region along ⟨110⟩ crystallographic direction for longitudinal and shear waves. Ultrasonic Grüneisen parameters, nonlinearity constants and ultrasonic attenuation due to p-p interaction and thermoelastic loss were determined from 50 K to 500 K using the Born-Mayer and electrostatic potentials. The results were compared with available experimental results.
DOI: 10.12693/APhysPolA.83.751
PACS numbers: 62.20.Dc, 62.65.+k