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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Volume relaxation of a-Se studied by mercury dilatometry
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Volume relaxation of a-Se studied by mercury dilatometry

机译：汞膨胀法研究a-Se的体积弛豫

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Mercury dilatometry was used to study volume relaxation of amorphous selenium (a-Se). Influence of experimental setting and reactivity of a-Se with mercury was studied using two differently constructed dilatometers (dissimilar sensitivity of sample volume change and dissimilar values of characteristic time constants of the dilatometers). Three types of volume-time-temperature experiments were made. Temperature of glass transition and thermal expansion coefficients in glassy and liquid state were determined from non-isothermal experiments. Volume relaxation was studied mainly on the basis of isothermal experiments. It was found that classical isothermal relaxation experiments are strongly influenced by the loss of information at the experiment beginning due to the proceeding relaxation. On the other hand, more comp ex thermal history experiments seem to be less dependent on these procedural parameters and were considered as most suitable for studying structural relaxation. The reaction of a-Se and mercury was found not to be influencing the results of volume relaxation measurements. (c) 2006 Elsevier B.V. All rights reserved.
机译：汞膨胀法用于研究非晶硒（a-Se）的体积弛豫。使用两种不同构造的膨胀计（样品体积变化的灵敏度不同，且膨胀计的特征时间常数的值不同）研究了实验环境和a-Se与汞的反应性的影响。进行了三种类型的体积-时间-温度实验。通过非等温实验确定玻璃态和玻璃态的玻璃化转变温度和热膨胀系数。体积松弛主要在等温实验的基础上进行研究。发现经典的等温弛豫实验在实验开始时由于进行中的弛豫而受到信息损失的强烈影响。另一方面，更多的热历史实验似乎对这些程序参数的依赖性较小，被认为最适合研究结构松弛。发现a-Se与汞的反应不会影响体积弛豫测量的结果。 （c）2006 Elsevier B.V.保留所有权利。

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