Related Experiment Video
Updated: Oct 29, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Numerical simulation study of a low freezing point metallic alloy: Na-K-Cs
1Université Mouloud Mammeri, Laboratoire de Physique et Chimie Quantique (LPCQ), Département de Physique, Faculté des Sciences, 15010 Tizi-Ouzou, Algeria.
Abstract:
A molecular dynamics study is performed of liquid Na0.139K0.435Cs0.426alloy known to have the lowest reported freezing point (195.2 K). Using Fiolhais's pair potential, we study the temperature dependence of the atomic structure of this alloy from 100 to 1000 K. Na atoms appear to play an important role in the lowering of its melting temperature. The self-diffusion coefficients as well as the viscosity are also computed. Their temperature dependence does not show any unusual behaviour. However, as temperature is nearing the melting point, diffusion and viscosity reach uncommon values for this kind of materials.
More Related Videos
11:11Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation
Published on: May 2, 2016
12:18Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys
Published on: June 27, 2022
Related Concept Videos
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
Phase Transitions: Melting and Freezing
Molecular and Ionic Solids
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Freezing Point Depression and Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
Theory of Metallic Conduction
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...