A new theoretical equation for temperature dependent self-diffusion coefficients of pure liquid metals

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A unified equation on the viscosity of pure liquid metals (published recently by the author) is combined with the well-known Sutherland-Einstein equation to obtain a new equation for the temperature dependence of the self-diffusion coefficients of pure liquid metals. The equation does not contain new adjustable parameters. It reproduces perfectly the experimental values, measured under micro-gravity conditions for liquid Sn, Pb, In and Sb. The experimental data, obtained under normal gravity conditions appear to be equal or somewhat higher than those calculated from the present model. This is explained by the effect of gravity induced convection in the liquid.

Original languageEnglish
Pages (from-to)14-17
Number of pages4
JournalInternational Journal of Materials Research
Volume99
Issue number1
DOIs
Publication statusPublished - Jan 2008

Fingerprint

liquid metals
Liquid metals
Gravitation
diffusion coefficient
Viscosity of liquids
Microgravity
Liquids
gravitation
Einstein equations
liquids
microgravity
Temperature
temperature
convection
viscosity
temperature dependence
Convection

Keywords

  • Gravity effect
  • Liquid metals
  • Self-diffusion
  • Temperature dependence
  • Viscosity

ASJC Scopus subject areas

  • Metals and Alloys
  • Materials Chemistry
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

@article{92efd6259899476c9a30428f5e796177,
title = "A new theoretical equation for temperature dependent self-diffusion coefficients of pure liquid metals",
abstract = "A unified equation on the viscosity of pure liquid metals (published recently by the author) is combined with the well-known Sutherland-Einstein equation to obtain a new equation for the temperature dependence of the self-diffusion coefficients of pure liquid metals. The equation does not contain new adjustable parameters. It reproduces perfectly the experimental values, measured under micro-gravity conditions for liquid Sn, Pb, In and Sb. The experimental data, obtained under normal gravity conditions appear to be equal or somewhat higher than those calculated from the present model. This is explained by the effect of gravity induced convection in the liquid.",
keywords = "Gravity effect, Liquid metals, Self-diffusion, Temperature dependence, Viscosity",
author = "G. Kaptay",
year = "2008",
month = "1",
doi = "10.3139/146.101600",
language = "English",
volume = "99",
pages = "14--17",
journal = "International Journal of Materials Research",
issn = "1862-5282",
publisher = "Carl Hanser Verlag GmbH & Co. KG",
number = "1",

}

TY - JOUR

T1 - A new theoretical equation for temperature dependent self-diffusion coefficients of pure liquid metals

AU - Kaptay, G.

PY - 2008/1

Y1 - 2008/1

N2 - A unified equation on the viscosity of pure liquid metals (published recently by the author) is combined with the well-known Sutherland-Einstein equation to obtain a new equation for the temperature dependence of the self-diffusion coefficients of pure liquid metals. The equation does not contain new adjustable parameters. It reproduces perfectly the experimental values, measured under micro-gravity conditions for liquid Sn, Pb, In and Sb. The experimental data, obtained under normal gravity conditions appear to be equal or somewhat higher than those calculated from the present model. This is explained by the effect of gravity induced convection in the liquid.

AB - A unified equation on the viscosity of pure liquid metals (published recently by the author) is combined with the well-known Sutherland-Einstein equation to obtain a new equation for the temperature dependence of the self-diffusion coefficients of pure liquid metals. The equation does not contain new adjustable parameters. It reproduces perfectly the experimental values, measured under micro-gravity conditions for liquid Sn, Pb, In and Sb. The experimental data, obtained under normal gravity conditions appear to be equal or somewhat higher than those calculated from the present model. This is explained by the effect of gravity induced convection in the liquid.

KW - Gravity effect

KW - Liquid metals

KW - Self-diffusion

KW - Temperature dependence

KW - Viscosity

UR - http://www.scopus.com/inward/record.url?scp=38849092567&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38849092567&partnerID=8YFLogxK

U2 - 10.3139/146.101600

DO - 10.3139/146.101600

M3 - Article

AN - SCOPUS:38849092567

VL - 99

SP - 14

EP - 17

JO - International Journal of Materials Research

JF - International Journal of Materials Research

SN - 1862-5282

IS - 1

ER -