Liquid metals transport properties

Another example of thin films showing metallic transport properties down to liquid helium temperature is 0-(BET-TTF)2Br.3H2O, where bilayers are grown on transparent polycarbonate substrates (Mas-Torrent et al, 2001). The bilayers are... 

Summary of experimental data Film boiling correlations have been quite successfully developed with ordinary liquids. Since the thermal properties of metal vapors are not markedly different from those of ordinary liquids, it can be expected that the accepted correlations are applicable to liquid metals with a possible change of proportionality constants. In addition, film boiling data for liquid metals generally show considerably higher heat transfer coefficients than is predicted by the available theoretical correlations for hc. Radiant heat contribution obviously contributes to some of the difference (Fig. 2.40). There is a third mode of heat transfer that does not exist with ordinary liquids, namely, heat transport by the combined process of chemical dimerization and mass diffusion (Eq. 2-162). 

Lemmon, A. W Jr., H. W. Deem, E. H. Hall and J. F. Walling, 1964, The Thermodynamic and Transport Properties of Potassium, Proc. of High Temperature Liquid Metal Technology Meeting, Vol. 1, 88-114, USAEC Rep. ORNL-3605. (2)... 

Excess electrons can be introduced into liquids by absorption of high-energy radiation, by photoionization, or by photoinjection from metal surfaces. The electron s chemical and physical properties can then be measured, but this requires that the electrons remain free. That is, the liquid must be sufficiently free of electron attaching impurities for these studies. The drift mobility as well as other transport properties of the electron are discussed here as well as electron reactions, free-ion yields, and energy levels. 

The preparation of single crystals. The need for fundamental studies of the mechanical, electrical, and surface properties of carbides and nitrides have necessitated the preparation of single crystals.27 Carbide single crystals are prepared by the Vernouil technique, the floating zone technique, and methods involving precipitation from liquid metals. Nitride single crystals are prepared by vapor transport processes. 

It is well known that HTS are peculiar metals with high resistivity whose transport properties are not consistent with conventional Fermi liquid... 

Nachtrieb, N. H. Transport properties in pure liquid metals. S. 49 in Liquid Metals and Solidification, ASM (1958). 

Poirier J. P. (1988) Transport properties of liquid metals and viscosity of the Earth s core. Geophys. J. 92, 99-105. 

Not much is known about the thermophysical properties of liquid metals, especially the transport properties such as chemical and thermal diffusivities. The existing data are sparse and the scatter makes it difficult to make an accurate determination of the temperature dependency of these properties. This situation was the motivation for Froberg s experiment on Space-lab-1 in which he measured the temperature dependence of the self-diffusion of Sn from 240°C to 1250°C. He found that the diffusion coefficients were 30-50% lower than the accepted values and seemed to follow a 7 dependence as opposed to the Arrhenius behavior observed in solid state diffusion. ... 

Fig. 5.22. Electronic transport properties of (Au, Ag, Cu)-Sn metallic glasses and the corresponding liquid state vs. composition, a) Resistivity metallic glasses (full symbols) [5.80, 83, 84], liquid state (thin curves) [5.53, 85] b) Hall coefficient metallic glasses (full symbols) [5.55], liquid state (open symbols) [5.53] c) Low-temperature thermopower [5.80, 83, 84]. In Figs, b, c the thin curves represent the free-electron values (5.14, 15)...

Many of the Vargaftik values also appear in Ohse, R. W., Handbook of Thermodynamic and Transport Properties of Alkali Metals, Blackwell Sci. Pubs., Oxford, 1985 (1020 pp.). This source contains superheat data. Saturation and superheat tables and a diagram to 30 bar, 1650 K are given by Reynolds, W. C., Thermodynamic Properties in S.I., Stanford Univ. publ., 1979 (173 pp.). For a Mollier diagram from 0.1 to 250 psia, 1300 to 2700°R, see Weatherford, W. D., J. C. Tyler, et al., WADD-TR-61-96,1961. An extensive review of properties of the solid and the saturated liquid is given by Alcock, C. B., M. W. Chase, et al., /. Phys. Chem. Ref Data, 23,3 (1994) 385-497. 

---