A Thermodynamic Modeling of the Fe–Nd–Sb System

Abstract

The FeNdSb system was assessed by means of the CALculation of PHAse Diagram (CALPHAD) technique. The solution phase, liquid, bcc, fcc, dhcp, and rhom, were described by the substitutional solution model.

Study of thermal stability of p-type skutterudites DD0.7Fe3CoSb12 by Knudsen effusion mass spectrometry

“…The temperatures of the phase transitions, as identied for the DD 0.7 Fe 3 CoSb 12 skutterudite, are somewhat different in comparison with those in the binary Co-Sb 36,37 and especially in the ternary Fe-Co-Sb 38 system. As for the Fe-Co-Sb 39,41 Data from the thermal analysis gained in this work can be used for thermodynamic and phase equilibria studies of quaternary Nd-Fe-Co-Sb or quinary Pr-Nd-Fe-Co-Sb systems, however, the aim of this paper is not a study of phase transformations and phase equilibria in these higher order systems. According to this information and on the basis of our DTA data, the compound DD 0.…”

“…Lattice parameter, a, in nm; crystallite size, cs, in nm; dislocation density, dld, in 10 14 m À2 ; relative density, d rel , in %; ZT. Data adopted from ref.28, 30 and 31 The stabilization effect of Nd for a ternary skutterudite NdFe 4 Sb 12 is already obvious in the Nd-Fe-Sb system [39][40][41]. However, it should be noted that although single crystal data have shown various degrees of defects in the Nd sublattice (Nd 0.832 Fe 4 Sb 12 , 42 Nd 0.73 Fe 4 Sb 12 (ref.…”