AC CALORIMETRY AT THE 1ST ORDER PHASE-TRANSITION POINT

被引：15

作者：

SARUYAMA, Y

机构：

[1] Faculty of Textile Science, Kyoto Institute of Technology, Kyoto, 606, Matsugasaki, Sakyoku

来源：

JOURNAL OF THERMAL ANALYSIS | 1992年 / 38卷 / 08期

关键词：

AC CALORIMETRY; 1ST ORDER PHASE TRANSITION; MELTING POINT OF N-PARAFFIN;

D O I：

10.1007/BF01974677

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A model is proposed for AC calorimetry (ACC) at the first order phase transition point. The model is compared with the results of ACC around the melting point of an n-paraffin (C20H42). The observed frequency dependence of ACC is consistent with the model. A harmonic component of the temperature modulation with a frequency equal to twice the heating frequency was observed at the phase transition point. It is shown that the harmonic component can be explained on the basis of the proposed model.

引用

页码：1827 / 1833

页数：7

共 3 条

[1] Character of the phase transition in liquid crystals by AC calorimetry
Castro, M
Puertolas, JA
THERMOCHIMICA ACTA, 1997, 305 : 291 - 301
[2] Investigation of grain-size influence on the ferroelectric-to-paraelectric phase transition in BaTiO3 ceramics by means of AC calorimetry
Tura, V
Mitoseriu, L
Papusoi, C
Osaka, T
Okuyama, M
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1998, 37 (4A): : 1950 - 1954
[3] Dynamics and ferroelectric phase transition of (C3N2H5)5Bi2Br11 by means of ac calorimetry and 1H NMR relaxometry
Przeslawski, J.
Medycki, W.
Piecha, A.
Jakubas, R.
Kruk, D.
CHEMICAL PHYSICS, 2013, 410 : 19 - 24

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