On the relation between surface tension and viscosity for liquid metals

Journal Article · Sat May 15 00:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90467-7· OSTI ID:6613276

Egry, I ^[1]

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1. Inst. for Space Simulation, Koeln (Germany)

With the advent of powerful mathematical modeling techniques for metallurgical phenomena, there is renewed interest in reliable data on the physical properties of liquid metals. Presently, the knowledge and accuracy of these data are the limiting factor in the models. Surface tension and viscosity are two such important quantities. Unfortunately, both their measurement, and their calculation, are rather difficult. Therefore empirical relations are a useful tool to assess the available data. In a recent paper, the authors derived a relation between surface tension and viscosity, based on two well known expressions due to Fowler and Born respectively. This relation makes use of the fact that both, surface tension and viscosity, can be expressed as integrals over the product of interatomic forces and the pair distribution function. They have checked its validity using available data at the melting point and found agreement to within 10-20%. In this paper they extend this analysis to a finite temperature range of approximately 300 K by using data available in the literature.

• OSTI ID: 6613276
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 28:10; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LIQUID METALS
PHYSICAL PROPERTIES
INTERATOMIC FORCES
MATHEMATICAL MODELS
MELTING POINTS
SURFACE TENSION
THEORETICAL DATA
VISCOSITY
DATA
ELEMENTS
FLUIDS
INFORMATION
LIQUIDS
METALS
NUMERICAL DATA
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
360104* - Metals & Alloys- Physical Properties