Heat capacity anomalies along the critical isotherm in fluid-fluid phase transitions

2010 ◽  
Vol 132 (15) ◽  
pp. 154509 ◽  
Author(s):  
Patricia Losada-Pérez ◽  
Germán Pérez-Sánchez ◽  
Jacobo Troncoso ◽  
Claudio A. Cerdeiriña
Keyword(s):  
Heat Capacity ◽  
Phase Transitions ◽  
Fluid Phase ◽  
Critical Isotherm

Influence of thermal treatment of Ti-45Nb alloy in ultrafine-grained states on its structural parameters and heat capacity

2021 ◽  
pp. 84-91
Author(s):  
E.V. Legostaeva ◽  
◽  
M.A. Khimich ◽  
Yu.P. Sharkeev ◽  
A.Yu. Eroshenko ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Heat Capacity ◽  
Phase Transitions ◽  
Structural Parameters ◽  
Structural Phase ◽  
Coherent Scattering ◽  
Normal Stresses ◽  
Two Phase ◽  
Ω Phase ◽  
Ultrafine Grained

The effect of heat treatment of the Ti-45Nb alloy in the UFG state on its structural parameters (lattice parameters, volumetric phase ratio, sizes of coherent scattering regions, residual normal stresses) and their relationship with heat capacity have been studied. It has been established that the different character of the temperature dependence of the heat capacity for the Ti-45Nb alloy in the UFG and CC states is associated with the structural-phase features of the alloy in the UFG state: the two-phase structure of a-grains and b-grains, dispersion-hardened by the ω-phase, and phase transitions in the temperature range 400-600 °С.

scholarly journals Heat capacity of lithium tungstate single crystal by DSC calorimetry data in the temperature range of 319-997 K

2021 ◽  
Vol 2057 (1) ◽  
pp. 012048
Author(s):  
N I Matskevich ◽  
V N Shlegel ◽  
A A Chernov ◽  
D A Samoshkin ◽  
S V Stankus ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Phase Transitions ◽  
Single Crystal ◽  
Weight Control ◽  
Czochralski Technique ◽  
Temperature Range ◽  
First Time ◽  
Lithium Tungstate ◽  
Dsc Calorimetry ◽  
Calorimetry Data

Abstract The heat capacity of lithium tungstate single crystal (Li2WO4) was measured for the first time in the temperature range of 319-997 K. The experiments were carried out by DSC calorimetry. The Li2WO4 single crystal was first grown by low-temperature-gradient Czochralski technique with weight control. The temperature dependence of Li2WO4 heat capacity in the temperature range 319-997 K was monotonic. According to results of our studies, there were no phase transitions in Li2WO4 in the investigated temperature range.

Heat capacity and phase transitions of the mixed-valence compound [Fe3O(O2CCH3)6(py)3](py)

1986 ◽  
Vol 108 (4) ◽  
pp. 702-708 ◽  
Author(s):  
Michio. Sorai ◽  
Kazutoshi. Kaji ◽  
David N. Hendrickson ◽  
Seung M. Oh
Keyword(s):  
Heat Capacity ◽  
Phase Transitions ◽  
Mixed Valence ◽  
Mixed Valence Compound
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