The behaviour of the acoustic attenuation in ethylcyclohexane at ultrasonic frequencies as a function of the temperature between 300 K and 100 K has been analyzed exploiting the information recently obtained by high resolution dielectric spectroscopy. The results suggest the existence of a secondary mechanical relaxation whose features are comparable with those of a Johari-Gold stein relaxation.

A trace of the Johari-Goldstein relaxation in the mechanical response of supercooled ethylcyclohexane ?

MANDANICI, Andrea;CUTRONI, Maria
2009

Abstract

The behaviour of the acoustic attenuation in ethylcyclohexane at ultrasonic frequencies as a function of the temperature between 300 K and 100 K has been analyzed exploiting the information recently obtained by high resolution dielectric spectroscopy. The results suggest the existence of a secondary mechanical relaxation whose features are comparable with those of a Johari-Gold stein relaxation.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11570/11044
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