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 inPhysics of wave phenomena Vol. 18; no. 3; pp. 159 - 163
Main Authors Sabirov, L. M., Semenov, D. I., Khaidarov, Kh. S.
Format Journal Article
LanguageEnglish
Published Heidelberg Allerton Press, Inc 01.09.2010
Subjects
Acoustics
Optical Spectroscopy
Physics
Physics and Astronomy
Quantum Optics
Singular Point
Negative Dispersion
Wave Phenomenon
Sound Frequency
Tertiary Butyl Alcohol
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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