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Related Concept Videos

Surface Tension of Fluid01:22

Surface Tension of Fluid

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Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
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Surface Tension and Surface Energy01:16

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Phase Transitions: Melting and Freezing02:39

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Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
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When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
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Solid-Liquid Interfacial Free Energy from Computer Simulations: Challenges and Recent Advances.

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Calculating solid-liquid interfacial free energy is crucial for understanding material properties. This review overviews numerical methods, including direct and indirect approaches, to tackle simulation challenges in this complex area.

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Area of Science:

  • Thermodynamics
  • Materials Science
  • Computational Physics

Background:

  • Interfacial properties of liquid systems studied for ~200 years.
  • Solid-liquid interface thermodynamics are complex due to solid structure.
  • Accurate interfacial free energy calculation is key for predicting interface behavior.

Purpose of the Study:

  • Provide an overview of numerical approaches for solid-liquid interfacial free energy calculation.
  • Classify existing methods into direct and indirect categories.
  • Discuss related topics like nucleation theory and curved interfaces.

Main Methods:

  • Review of numerical simulation techniques.
  • Classification of methods into direct and indirect approaches.
  • Discussion of challenges specific to solid-liquid systems (e.g., lattice directionality).

Main Results:

  • Solid-liquid interfacial free energy calculation is challenging but essential.
  • Direct methods compute free energy explicitly.
  • Indirect methods derive free energy from simulation analysis.

Conclusions:

  • Numerical methods are vital for understanding solid-liquid interfaces.
  • Direct and indirect methods offer different pathways to calculate interfacial free energy.
  • Further research is active in nucleation theory and curved solid-liquid interfaces.