Cu – Ta (Copper – Tantalum)

Joachim Gröbner, Dirk Matusch, Vladimir Turkevich, Peter Rogl

Literature Data

The phase diagram of the Cu-Ta system is published by [Mas2]. The liquidus curve calculated by [1989Sub] is based on an unrealistic estimation of the enthalpy of mixing of the liquid. [1991Oka] pointed out that the enthalpy of mixing of a liquid phase having continuous solubility cannot exceed a value much above 20 kJ mol^-1 of atoms. Taking into account this consideration and one experimental point on the liquidus curve measured by [1986Ver], the Cu-Ta phase diagram was reevaluated by [1994Sub].