NDLI: Thermophysical Properties of Containerless Liquid Iron up to 2500 K

Content Provider	Springer Nature Link
Author	Wille, G. Millot, F. Rifflet, J. C.
Copyright Year	2002
Abstract	Thermophysical properties of high temperature liquid iron heated with a CO$_{2}$ laser have been determined in an aerodynamic levitation device equipped with a high-speed camera and a three-wavelength pyrometer. Characteristic curves of the free cooling and heating of the drop can be used to determine the same apparent emissivity of solid and liquid iron and to calibrate pyrometers based on the known value of the melting point of iron, i.e., 1808 K. Examination of the recalescence of undercooled liquid iron and further solidification are used to obtain the ratio of the melting enthalpy versus the heat capacity of liquid iron as $$\frac{{\Delta H_m }}{{c_P^l }} = 306 \pm 2.5{\text{ K}}$$ . The surface tension σ was determined from an analysis of the vibrations of liquid drops. Results are accurately described by σ (mJ⋅m$^{−2}$)=(1888±31)−(0.285±0.015) (T−T $_{ m }$) between 1750 K (undercooled liquid) and 2500 K. The density of liquid iron has been deduced from the image size and the mass of the liquid iron drops.
Starting Page	1197
Ending Page	1206
Page Count	10
File Format	PDF
ISSN	0195928X
Journal	International Journal of Thermophysics
Volume Number	23
Issue Number	5
e-ISSN	15729567
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2002-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Industrial Chemistry/Chemical Engineering Mechanics Condensed Matter
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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