A new theoretical equation for temperature dependent self-diffusion coefficients of pure liquid metals
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George Kaptay
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.
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© 2008, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Prof. Dr.-Ing. habil. Dr.-Ing. E. h. Werner Schatt zum 85. Geburtstag
- Basic
- In-situ reaction synthesis and decomposition of Ta2AlC
- A new theoretical equation for temperature dependent self-diffusion coefficients of pure liquid metals
- Thermodynamic characterization of liquid alloys with demixing tendency: Bi–Ga
- Space charge effects in confined ceramic systems
- Solute transport and phase composition in an Al–Mg–Si alloy solidified under conditions of forced flow
- Evidence of α → ω phase transition in titanium after high pressure torsion
- Thermodynamic properties and elastic constants of Nd–Mg intermetallics: a molecular dynamics study
- Microstructure, texture and mechanical properties of the magnesium alloy AZ31 processed by ECAP
- Applied
- Effect of solidification microstructure and Ca additions on creep strength of magnesium alloy AZ91 processed by Thixomolding
- Magnetic hardening mechanism of PrCo5-based ribbons with C addition prepared by melt spinning
- Studies on the exchange and dipolar couplings in Nd2Fe14B/α-Fe
- Microstructural characteristics and elevated temperature wear of Ti-11Si-16Al alloy
- Nickel coating on some organic and carbon fibres by chemical plating
- Wear and corrosion properties of nanocrystalline coatings on stainless steel produced by plasma electrolytic nitrocarburizing
- The characterisation of microstructural changes in rapidly solidified Al–Fe alloys through measurement of their electrical resistance
- Solid inclusion cakes formed during pressure filtration tests of liquid aluminum alloys
- Performance of Ni/YSZ cermet cathode prepared by mechanical alloying for high temperature electrolysis of water vapor (steam): effect of anode and cathode thicknesses on the efficiency of hydrogen production
- Review
- Practical aspects and implications of interfaces in glass-ceramics: a review
- Notifications
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Prof. Dr.-Ing. habil. Dr.-Ing. E. h. Werner Schatt zum 85. Geburtstag
- Basic
- In-situ reaction synthesis and decomposition of Ta2AlC
- A new theoretical equation for temperature dependent self-diffusion coefficients of pure liquid metals
- Thermodynamic characterization of liquid alloys with demixing tendency: Bi–Ga
- Space charge effects in confined ceramic systems
- Solute transport and phase composition in an Al–Mg–Si alloy solidified under conditions of forced flow
- Evidence of α → ω phase transition in titanium after high pressure torsion
- Thermodynamic properties and elastic constants of Nd–Mg intermetallics: a molecular dynamics study
- Microstructure, texture and mechanical properties of the magnesium alloy AZ31 processed by ECAP
- Applied
- Effect of solidification microstructure and Ca additions on creep strength of magnesium alloy AZ91 processed by Thixomolding
- Magnetic hardening mechanism of PrCo5-based ribbons with C addition prepared by melt spinning
- Studies on the exchange and dipolar couplings in Nd2Fe14B/α-Fe
- Microstructural characteristics and elevated temperature wear of Ti-11Si-16Al alloy
- Nickel coating on some organic and carbon fibres by chemical plating
- Wear and corrosion properties of nanocrystalline coatings on stainless steel produced by plasma electrolytic nitrocarburizing
- The characterisation of microstructural changes in rapidly solidified Al–Fe alloys through measurement of their electrical resistance
- Solid inclusion cakes formed during pressure filtration tests of liquid aluminum alloys
- Performance of Ni/YSZ cermet cathode prepared by mechanical alloying for high temperature electrolysis of water vapor (steam): effect of anode and cathode thicknesses on the efficiency of hydrogen production
- Review
- Practical aspects and implications of interfaces in glass-ceramics: a review
- Notifications
- DGM News