Mechanical collapse vs ideal glass formation in slowly vitrified solutions: A plausibility test

C. A. Angell; J. Donnella

doi:10.1063/1.434597

Mechanical collapse vs ideal glass formation in slowly vitrified solutions: A plausibility test

C. A. Angell, J. Donnella

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Abstract

Homogeneous nucleation temperatures T_H for binary solutions have been measured using the emulsion technique. From their composition dependence it is argued that the excess entropy paradox (Kauzmann paradox) for supercooling liquids cannot reasonably be resolved by postulating the intercession of a first order phase change (homogeneous nucleation anticipating mechanical instability) prior to the exhaustion of the excess entropy reservoir at T ₀. There are evidently composition ranges in which T_H lies below T₀. This observation implies that in certain "clean" solutions the "ideal glass" state can in principle be approached.

Original language	English (US)
Pages (from-to)	4560-4563
Number of pages	4
Journal	The Journal of chemical physics
Volume	67
DOIs	https://doi.org/10.1063/1.434597
State	Published - Jan 1 1977
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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abstract = "Homogeneous nucleation temperatures TH for binary solutions have been measured using the emulsion technique. From their composition dependence it is argued that the excess entropy paradox (Kauzmann paradox) for supercooling liquids cannot reasonably be resolved by postulating the intercession of a first order phase change (homogeneous nucleation anticipating mechanical instability) prior to the exhaustion of the excess entropy reservoir at T 0. There are evidently composition ranges in which TH lies below T0. This observation implies that in certain {"}clean{"} solutions the {"}ideal glass{"} state can in principle be approached.",

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AU - Donnella, J.

PY - 1977/1/1

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N2 - Homogeneous nucleation temperatures TH for binary solutions have been measured using the emulsion technique. From their composition dependence it is argued that the excess entropy paradox (Kauzmann paradox) for supercooling liquids cannot reasonably be resolved by postulating the intercession of a first order phase change (homogeneous nucleation anticipating mechanical instability) prior to the exhaustion of the excess entropy reservoir at T 0. There are evidently composition ranges in which TH lies below T0. This observation implies that in certain "clean" solutions the "ideal glass" state can in principle be approached.

AB - Homogeneous nucleation temperatures TH for binary solutions have been measured using the emulsion technique. From their composition dependence it is argued that the excess entropy paradox (Kauzmann paradox) for supercooling liquids cannot reasonably be resolved by postulating the intercession of a first order phase change (homogeneous nucleation anticipating mechanical instability) prior to the exhaustion of the excess entropy reservoir at T 0. There are evidently composition ranges in which TH lies below T0. This observation implies that in certain "clean" solutions the "ideal glass" state can in principle be approached.

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Mechanical collapse vs ideal glass formation in slowly vitrified solutions: A plausibility test

Abstract

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