Photothermal calorimetry and microcalorimetry in thermally inhomogeneous liquid samples

被引:2
作者
Mercuri, F [1 ]
Zammit, U [1 ]
Scudieri, F [1 ]
Marinelli, M [1 ]
机构
[1] Univ Roma Tor Vergata, Dipartimento Ingn Meccan, I-00133 Rome, Italy
来源
JOURNAL DE PHYSIQUE IV | 2005年 / 125卷
关键词
D O I
10.1051/jp4:2005125031
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The implementation of a high resolution photopyroelectric calorimeter for the study of thermally inhomogeneous liquids is reported. The set-up allows the application of electric fields to the sample and a spatially resolved (approx 100 mu m) simultaneous measurement of the specific heat, the thermal conductivity and the thermal diffusivity, The thermal parameters of bulk liquid crystal samples and colloidal dispersions of nanoparticles in liquid crystalline compounds have been investigated.
引用
收藏
页码:135 / 139
页数:5
相关论文
共 9 条
[1]   Measuring local thermal conductivity in polycrystalline diamond with a high resolution photothermal microscope [J].
Hartmann, J ;
Voigt, P ;
Reichling, M .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (07) :2966-2972
[2]   Calorimetric and small angle x-ray scattering study of phase transitions in octylcyanobiphenyl-aerosil dispersions [J].
Iannacchione, GS ;
Garland, CW ;
Mang, JT ;
Rieker, TP .
PHYSICAL REVIEW E, 1998, 58 (05) :5966-5981
[3]   Anisotropic heat transport in the octylcyanobiphenyl (8CB) liquid crystal [J].
Marinelli, M ;
Mercuri, F ;
Foglietta, S ;
Zammit, U ;
Scudieri, F .
PHYSICAL REVIEW E, 1996, 54 (02) :1604-1609
[4]   PHOTOPYROELECTRIC STUDY OF SPECIFIC-HEAT, THERMAL-CONDUCTIVITY, AND THERMAL-DIFFUSIVITY OF CR2O3 AT THE NEEL TRANSITION [J].
MARINELLI, M ;
MERCURI, F ;
ZAMMIT, U ;
PIZZOFERRATO, R ;
SCUDIERI, F .
PHYSICAL REVIEW B, 1994, 49 (14) :9523-9532
[5]   Photopyroelectric structural and thermal characterization of first-order phase transition in liquid crystals [J].
Mercuri, F ;
Pizzoferrato, R ;
Zammit, U ;
Marinelli, M .
APPLIED PHYSICS LETTERS, 2002, 81 (22) :4148-4150
[6]   Scanning calorimeter for nanoliter-scale liquid samples [J].
Olson, EA ;
Efremov, MY ;
Kwan, AT ;
Lai, S ;
Petrova, V ;
Schiettekatte, F ;
Warren, JT ;
Zhang, M ;
Allen, LH .
APPLIED PHYSICS LETTERS, 2000, 77 (17) :2671-2673
[7]   ORIGIN OF THERMAL-CONDUCTIVITY ANISOTROPY IN LIQUID-CRYSTALLINE PHASES [J].
RONDELEZ, F ;
URBACH, W ;
HERVET, H .
PHYSICAL REVIEW LETTERS, 1978, 41 (15) :1058-1062
[8]   Thermal transport mechanisms at nanoscale point contacts [J].
Shi, L ;
Majumdar, A .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2002, 124 (02) :329-337
[9]  
THOEN J, 1992, PHASE TRANSITIONS LI