Unusual temperature dependence of the solid-liquid interfacial free energy in the Cu-Zr system

The solid-liquid interfacial free energies of each of the individual phases comprising the eutectic system, Carbon Tetrabromide-Hexachloroethane, were measured as a function of composition using a “grain boundary groove” technique. Thermodynamic data were combined with groove shape measurements made from high resolution optical photomicrographs of the solid-liquid interfaces to give the interfacial free energy data. An interfacial free energy balance at the eutectic trijunction was performed to obtain all the forces acting on that point. The three interphase interfacial free energies at the eutectic trijunctions as well as a solid-solid phase boundary torque were evaluated.It was found that the solid-liquid interfacial free energies of the two phases of the eutectic could be evaluated from photomicrographs of growing or stationary eutectic interfaces. In addition, it was found that for a substantial range of freezing conditions the eutectic interface shape can be predicted from a knowledge of the interfacial free energies alone.

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THE PREPARATION OF SODIUM CHLORIDE OF LARGE SPECIFIC SURFACE

Canadian Journal of Chemistry ◽

10.1139/v52-053 ◽

1952 ◽

Vol 30 (5) ◽

pp. 448-453 ◽

Cited By ~ 17

Author(s):

A. Craig ◽

R. McIntosh

Keyword(s):

Free Energy ◽

Sodium Chloride ◽

Specific Surface ◽

Interfacial Free Energy ◽

Moist Air ◽

A Value ◽

The One ◽

Solid Liquid ◽

Fundamental Units

A procedure is outlined by which sodium chloride particles of specific surface up to 50 m2 per gm. may be prepared. The particles form in chains and are found to lose area rapidly in moist air. The fundamental units of the chain do not appear cubic. Single cubic particles or chains of cubic particles also have been prepared. The one sample identified as this type had a specific surface of 18 m2 per gm. The sintering in moist air appears to occur by a process of solution and recrystallization. A value of the interfacial free energy solid–liquid is calculated from the data.

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Corrigendum to ‘Layering misalignment and negative temperature dependence of interfacial free energy of B2-liquid interfaces in a glass forming system’ [Acta Mater. 219 (2021) 117259]

Acta Materialia ◽

10.1016/j.actamat.2021.117525 ◽

2022 ◽

Vol 224 ◽

pp. 117525

Author(s):

Lei Wang ◽

Jeffrey J. Hoyt

Keyword(s):

Free Energy ◽

Temperature Dependence ◽

Negative Temperature ◽

Interfacial Free Energy ◽

Liquid Interfaces ◽

Glass Forming ◽

Acta Mater

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Calculation of Liquid–Solid Interfacial Free Energy in Pb–Cu Binary Immiscible System

Zeitschrift für Naturforschung A ◽

10.1515/zna-2016-0151 ◽

2016 ◽

Vol 71 (11) ◽

pp. 1073-1077 ◽

Cited By ~ 1

Author(s):

Hong-shan Li ◽

Sheng-gang Zhou ◽

Yong Cao

Keyword(s):

Free Energy ◽

Binary System ◽

Physical Model ◽

Interfacial Free Energy ◽

Theoretical Formula ◽

Immiscible System ◽

Energy Theory ◽

Experimental Values ◽

Two Parameters ◽

Solid Liquid

AbstractBased on the solid–liquid interfacial free energy theory of the complex Warren binary & pseudo-binary system and through the simplification of it by taking Pb–Cu binary system as an example, the physical model for it in binary immiscible system can be obtained. Next, its thermodynamic formula is derived to obtain a theoretical formula that only contains two parameters, and comparisons are made with regard to γSL calculated values and experimental values of MPE (multiphase equilibrium method) under several kinds of temperatures. As manifested in the outcomes, the improved physical model and theoretical formula will become not only easy to understand but also simple for calculation (the calculated value of γSL depends on two parameters, i.e. temperature and percentage composition of Cu atom). It can be treated as the foundation of application for the γSL calculation of liquid–solid interfacial free energy in other immiscible systems.

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