Entropy production in TMDSC

被引：10
|
作者：
Garden, J. -L. [1 ,2 ]
Richard, J. [1 ,2 ]
Saruyama, Y. [3 ]
机构：
[1] CNRS, Inst Neel, F-38042 Grenoble 9, France
[2] Univ Grenoble 1, F-38042 Grenoble 9, France
[3] Kyoto Inst Technol, Div Macromol Sci & Engn, Kyoto 6068585, Japan
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 94卷 / 02期
关键词：
entropy production; frequency dependent complex heat capacity; non-equilibrium thermodynamics; relaxation time constants; TMDSC;
D O I：
10.1007/s10973-007-8772-6
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The non-equilibrium process due to irreversible heat exchanges occurring during a temperature modulated differential scanning calorimetry (TMDSC) experiment is investigated in detail. This enables us to define an experimental frequency dependent complex heat capacity from this calorimetric method. The physical meaning of this dynamic heat capacity is discussed. A relationship is clearly established between the imaginary part of this complex quantity and the net entropy created during the experimental time-scale.
引用
收藏
页码：585 / 590
页数：6
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