Recent developments in photopyroelectric calorimetry for phase transition studies in liquid crystals

被引：0
作者：
Mercuri, F. [1 ]
Paoloni, S. [1 ]
Marinelli, M. [1 ]
Zammit, U. [1 ]
机构：
[1] Univ Roma Tor Vergata, Dept Mech Engn, I-00133 Rome, Italy
来源：
15TH INTERNATIONAL CONFERENCE ON PHOTOACOUSTIC AND PHOTOTHERMAL PHENOMENA (ICPPP15) | 2010年 / 214卷
关键词：
THERMAL PARAMETERS; CRITICAL-BEHAVIOR; SCATTERING;
D O I：
10.1088/1742-6596/214/1/012010
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on calorimetric measurements carried out in an upgraded photopyroelectric setup enabling the determination of the frequency dependence of the specific, heat and of the latent heat exchanged over first order transitions as well as the simultaneously determined nematic correlation length obtained from light scattering measurements. It has been applied to the study of the Nematic-Isotropic transition of 8CB liquid crystal confined in a silica nanoparticle network, where the specific heat shows a double peak structure.
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页数：7
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