The high temperature heat content and heat capacity of liquid cerium-copper alloys by levitation calorimetry

Abstract

The electromagnetic method of heating was used to determine the heat contents of liquid-cerium-copper alloys over the complete range of alloy composition. The temperatures of the levitated samples were determined pyrometrically utilizing the normal spectral emissivity data measured in an earlier work. The heat capacity was derived from analytic expression for heat contents. The composition dependence of the heat capacity goes through a maximum at 67 at. pct Cu. This behavior is ascribed to the effect of a Ce-Cu2-type atomic clustering in the liquid phase.