Dispersion of the high-frequency sound velocity in the aqueous solution of 4-methylpyridine

Dispersion of the high-frequency sound velocity in the aqueous solution of 4-methylpyridine with the concentration 0.06 mole fraction corresponding to the singular point in the temperature-concentration phase diagram is studied. Along with observation of positive dispersion of the speed of sound in...

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Bibliographic Details
Published in:Physics of wave phenomena 2010-09, Vol.18 (3), p.159-163
Main Authors: Sabirov, L. M., Semenov, D. I., Khaidarov, Kh. S.
Format: Article
Language:English
Subjects:
Acoustics
Optical Spectroscopy
Physics
Physics and Astronomy
Quantum Optics
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Summary:Dispersion of the high-frequency sound velocity in the aqueous solution of 4-methylpyridine with the concentration 0.06 mole fraction corresponding to the singular point in the temperature-concentration phase diagram is studied. Along with observation of positive dispersion of the speed of sound in going over from ultrasound to hypersound frequencies (5.4 MHz to 4.8 GHz), negative dispersion (a decrease in velocity with increasing frequency) was also observed in a narrow interval of hypersound frequencies from 4.8 to 6.1 GHz.
ISSN:1541-308X
1934-807X
DOI:10.3103/S1541308X10030027