Mathematical studies of modulated differential scanning calorimetry - I. Heat capacity measurements

被引：20

作者：

Cao, JN ^{[1
]}

机构：

[1] CSIRO, Div Wool Technol, Belmont, Vic 3216, Australia

来源：

THERMOCHIMICA ACTA | 1999年 / 325卷 / 02期

关键词：

temperature modulation; differential scanning calorimetry; heat capacity; amplitude; phase lag;

D O I：

10.1016/S0040-6031(98)00559-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The mathematical bases for modulated differential scanning calorimetry (MDSC) have been discussed. It is found that the amplitude of hear flow is a non-linear function of the thermal transfer coefficient, lambda, the modulation period, p, the heat capacity of reference, C-pr, and the heat capacity of a sample, C-ps. Therefore, the quantitative determination of the heat capacity of a sample is rather difficult if not impossible. From this point of view, MDSC does not offer any advantage over a conventional DSC. (C) 1999 Elsevier Science B.V. All right reserved.

引用

页码：101 / 109

页数：9

共 9 条

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