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Some observations of thermodynamic and electron transport properties in expanded liquid mercury and amalgams

F E Neale, N E Cusack and R D Johnson

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Experimental observations have been made at temperatures up to 1450 degrees C and pressures up to 0.2 GPa of the density of expanded liquid mercury, and the electrical conductivity of liquid mercury and of certain amalgams, chiefly Hg-3 at.% In and Hg-1 to 3 at.% Na. The density of a 3 at.% In amalgam was also measured over the same pressure range to 1000 degrees C. The data lead to some discussion of the effect of the solute on compressibility, expansivity, volume and conductivity. The decrease of conductivity caused by Na at high mercury densities is shown to change to a large decrease near the metal-insulator transition density, though the mechanism remains obscure.


PACS

65.20.-w Thermal properties of liquids

62.10.+s Mechanical properties of liquids

71.30.+h Metal-insulator transitions and other electronic transitions

72.60.+g Mixed conductivity and conductivity transitions

72.15.Cz Electrical and thermal conduction in amorphous and liquid metals and alloys

Subjects

Soft matter, liquids and polymers

Condensed matter: electrical, magnetic and optical

Dates

Issue 1 (January 1979)



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