ANOMALIES OF THE SOUND ABSORPTION COEFFICIENT FOR BINARY SOLUTIONS WITH A CRITICAL STRATIFICATION TEMPERATURE

被引：1

作者：

Bulavin, L. A. ^{[1
,2
]}

Bilous, O. I. ^{[3
]}

Balega, A. V. ^{[1
]}

Svechnikova, O. S. ^{[1
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, 64-13 Volodymyrska Str, UA-01601 Kiev, Ukraine

[2] Natl Acad Sci Ukraine, Inst Safety Problems Nucl Power Plants, 36a Kirov Str, UA-07270 Chornobyl, Kyiv Region, Ukraine

[3] Natl Aviat Univ, 1 Prosp Cosmonaut Komarov, UA-03058 Kiev, Ukraine

来源：

UKRAINIAN JOURNAL OF PHYSICS | 2018年 / 63卷 / 04期

关键词：

sound absorption coefficient; critical stratification point; binary solution; concentration fluctuations; acoustic relaxation;

D O I：

10.15407/ujpe63.4.308

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The results of the analysis of experimental data concerning the sound absorption in the nitro-methane-n-pentanol and nitrobenzene-n-hexane solutions obtained in a wide frequency interval of 5-2800 MHz and measured along the isotherms and isoconcentrates, including their critical values, are presented. The detected anomalous dependences of the sound absorption coefficient were found to obey the laws of the dynamic scaling theory only in the fluctuation region of the problem parameters, omega(TA) >> 1. The sound frequency growth (f >= 110 MHz) in the examined frequency interval, as well as moving away from the critical temperature and concentration values, is proved to transit the system from the critical region into the crossover,omega(TA) similar to 1, or even hydrodynamic, omega(TA) << 1, one.

引用

页码：308 / 316

页数：9

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