Title of article :
Thermodynamic assessment of the La–Zn system
Author/Authors :
Berche، نويسنده , , Alexandre and Benigni، نويسنده , , Pierre and Rogez، نويسنده , , Jacques and Record، نويسنده , , Marie-Christine، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Abstract :
A thermodynamic optimization of the La–Zn system is carried out using the CALPHAD (CALculation of the PHAse Diagram) method. This new assessment takes into account the latest experimental values of enthalpies of formation reported in literature. The solution phases (liquid, bcc-La, fcc-La, dhcp-La and hcp-Zn) are modelled as substitution solutions using the Redlich–Kister equation. Nine intermediate phases are considered in this assessment, namely LaZn, LaZn2, LaZn4, LaZn5, LaZn7, La3Zn22, La2Zn17, LaZn11 and LaZn13 and are treated as stoichiometric compounds.
Keywords :
lanthanum , CALPHAD method , Zinc , Thermodynamic assessment
