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

A. Mandanici; M. Cutroni

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

机译：Johari-Goldstein弛豫在过冷乙基环己烷的机械响应中的痕迹？

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摘要

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-Goldstein relaxation.

机译：利用最近通过高分辨率介电谱获得的信息，分析了在超声波频率下乙基环己烷中的声衰减行为随温度在300 K和100 K之间的变化。结果表明存在二次机械弛豫，其特征与Johari-Goldstein弛豫具有可比性。

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《Materials Science and Engineering》 |2009年第2009期|279-282|共4页
作者
A. Mandanici; M. Cutroni;
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作者单位

Dipartimento di Fisica, Universita di Messina, Salita Sperone, 31, 98100 Messina, Italy;

Dipartimento di Fisica, Universita di Messina, Salita Sperone, 31, 98100 Messina, Italy;

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正文语种 eng
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关键词
ethylcyclohexane; ultrasonic attenuation; α-relaxation; secondary relaxations; johari-goldstein relaxation; glass-forming liquids;

机译：乙基环己烷超声波衰减α松弛次生松弛;乔哈里·戈尔德斯坦放松玻璃形成液;

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3. Multiple Mechanical Relaxations in Ethylcyclohexane above the Glass Transition Temperature [J] . Andrea Mandanici, Maria Cutroni The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical . 2007,第37期

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

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