Ultrasonic absorption in critical binary mixture of perfluoromethylcyclohexane and carbon tetrachloride

摘要

The results of ultrasonic absorption and velocity measurements for the system perfluoromethylcyclohexane-carbon tetrachloride are presented. In addition, viscosity measurements were made. Ultrasonic absorption at 5, 7, 10, 15, 21, and 25 MHz, above critical temperature T_(c), is analyzed using the dynamic scaling theory of Ferrell and Bhattacharjee. The values of α/f~(2) vs f~(-1.06) show a good agreement with the theory. The experimental values of α/α_(c) for the binary mixture are compared to the scaling function F(ω~(*)).