Calorimetric investigations of phase transitions in amyl-ethoxy-cyanstilbene (AECS)

2007 ◽  
pp. 158-160 ◽  
Author(s):  
O. Valentová ◽  
J. Biroš ◽  
L. Valenta
Keyword(s):  
Phase Transitions ◽  
Calorimetric Investigations

Calorimetric Investigations of Phase Transitions in KNO3Embedded Into Porous Glasses

2010 ◽  
Vol 402 (1) ◽  
pp. 60-65 ◽  
Author(s):  
A. Sieradzki ◽  
J. Komar ◽  
E. Rysiakiewicz-Pasek ◽  
A. Ciżman ◽  
R. Poprawski
Keyword(s):  
Phase Transitions ◽  
Porous Glasses ◽  
Calorimetric Investigations

Entropy diagnosis for phase transitions occurring in functional materials

2005 ◽  
Vol 77 (8) ◽  
pp. 1331-1343 ◽  
Author(s):  
Michio Sorai
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Selection Rule ◽  
Functional Materials ◽  
Condensed State ◽  
Molecular Motions ◽  
Good Tool ◽  
The Stability ◽  
Calorimetric Investigations ◽  
Good Probe

Functionalities of materials manifest themselves as the result of a concerted effect among molecular structure, intermolecular interactions, and molecular motions. Since the entropy of substance directly reflects the degree of molecular motions, the entropy plays a crucial role when one discusses the stability of a given phase at finite temperatures. When a delicate balance of these three factors is broken, the condensed state faces a catastrophe and is transformed into another phase. Therefore, phase transition is a good probe for elucidation of the interplay between these three factors. As there is no selection rule in thermodynamics, the entropy gain at the phase transition is a good tool to diagnose the mechanism of phase transition. In this presentation, calorimetric investigations aimed at the elucidation of the mechanisms governing phase transitions occurring in molecule-based functional materials are reviewed.

Calorimetric investigations of phase transitions in the cryolites (NH4)3Ga1−x ScxF6(x=1.0,0.1,0)

1999 ◽  
Vol 41 (3) ◽  
pp. 468-473 ◽  
Author(s):  
I. N. Flerov ◽  
M. V. Gorev ◽  
T. V. Ushakova
Keyword(s):  
Phase Transitions ◽  
Calorimetric Investigations
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