Phase behaviors of supercooled water: Reconciling a critical point of amorphous ices with spinodal instability

1996 ◽  
Vol 105 (12) ◽  
pp. 5099-5111 ◽  
Author(s):  
Hideki Tanaka
Keyword(s):  
Critical Point ◽  
Supercooled Water ◽  
Amorphous Ices ◽  
Spinodal Instability ◽  
Phase Behaviors

A structural comparison of supercooled water and intermediate density amorphous ices

2004 ◽  
Vol 102 (19-20) ◽  
pp. 2007-2014 ◽  
Author(s):  
J. Urquidi * ◽  
C.J. Benmore ◽  
P. A. Egelstaff ◽  
M. Guthrie ◽  
S. E. Mclain ◽  
...  
Keyword(s):  
Supercooled Water ◽  
Structural Comparison ◽  
Amorphous Ices ◽  
Intermediate Density

scholarly journals Аномалия микроволнового поглощения льда вблизи -45-=SUP=-o-=/SUP=-C при пластической деформации

2019 ◽  
Vol 89 (3) ◽  
pp. 452
Author(s):  
Г.С. Бордонский
Keyword(s):  
Plastic Deformation ◽  
Phase Space ◽  
Critical Point ◽  
Microwave Absorption ◽  
Atmospheric Pressure ◽  
Supercooled Water ◽  
Measuring Technique ◽  
Temperature Phase ◽  
Widom Line ◽  
Radiation Transmission

AbstractThe microwave absorption of fresh ice subjected to plastic deformation when changing temperature from 0 to –60°C has been measured. A decrease in the losses of radiation transmission through ice at frequencies of 32 and 125 GHz with extremum at a temperature of –45°C was found. This temperature corresponds to the point at atmospheric pressure at the Widom line, which starts from a hypothetic second critical point in pressure–temperature phase space. The used measuring technique makes it possible to obtain layers of deeply supercooled water into ice and study the position of the Widom line and second critical point in phase space.

scholarly journals Holographic approach of the spinodal instability to criticality

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Maximilian Attems
Keyword(s):  
Surface Tension ◽  
Critical Point ◽  
Single Phase ◽  
Transverse Pressure ◽  
First Order Phase Transition ◽  
Holographic Approach ◽  
Spinodal Instability ◽  
First Order Phase ◽  
Gauge Gravity ◽  
Gravity Duality

Abstract A smoking gun signature for a first-order phase transition with negative speed of sound squared $$ {c}_s^2 $$ c s 2 is the occurrence of a spinodal instability. In the gauge/gravity duality it corresponds to a Gregory-Laflamme type instability, which can be numerically simulated as the evolution of unstable planar black branes. Making use of holography its dynamics is studied far from and near a critical point with the following results. Near a critical point the interface between cold and hot stable phases, given by its width and surface tension, is found to feature a wider phase separation and a smaller surface tension. Far away from a critical point the formation time of the spinodal instability is reduced. Across softer and harder phase transitions, it is demonstrated that mergers of equilibrated peaks and unstable plateaux lead to the preferred final single phase separated solution. Finally, a new atypical setup with dissipation of a peak into a plateau is discovered. In order to distinguish the inhomogeneous states I propose a new criterium based on the maximum of the transverse pressure at the interface which encodes phase-mixed peaks versus fully phase separated plateaux.

Peculiar Thermodynamics of the Second Critical Point in Supercooled Water

2011 ◽  
Vol 115 (48) ◽  
pp. 14099-14111 ◽  
Author(s):  
C. E. Bertrand ◽  
M. A. Anisimov
Keyword(s):  
Critical Point ◽  
Supercooled Water
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