Formulation of the A2/B2/D03 atomic ordering energy and a thermodynamic analysis of the Fe-Si system

Miscibility of NiSi2, FeSi2 and Cu3Si

“…Therefore, it is helpful to understand the for the melting samples C1N0F0-C0N1F0 (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11) was prepared from element chunks, heated up to 1400 • C and kept at this temperature for 3 h. The intention of this procedure was to assure a complete melting of the samples. However, it could not be excluded that the resulting samples were far from equilibrium.…”

“…To prevent melting of possibly locally occurring eutectic compositions in the samples, annealing temperature for Cu-containing samples (C0.95N0.00F0.05-C0.00N0.95F0.05/13-23) was chosen to be 750 • C (well below the eutectic temperature 802 • C in the Cu-Si system [7]). For the same purpose Cu-free samples (C0N1F0-C0N0F1/12, 24-33) were sintered at 900 • C (well below the eutectic temperatures 937 • C in the Fe-Si [11] and 966 • C in the Ni-Si system [8]). Powders were pressed into pellets, heated up and kept at maximum temperatures for 2 days.…”

First-principles calculations of phonon and thermodynamic properties of Fe-Si compounds

“…A2/B2 and B2/D0 3 phase transitions that take place in the bcc solid solution of Fe are important to describe the ordering processes [3,4]. The FeSi compound with a cubic B20 structure has attracted much attention because of its anomalous temperaturedependent electrical, optical, and magnetic properties which are similar to those of Kondo insulators [5e8].…”

A Thermodynamic Model for Representation Reaction Abilities of Structural Units in Full Composition Range of Fe–Si Binary Melts Based on the Atom–Molecule Coexistence Theory

“…The iron‐rich ferrosilicon alloy is one of the important alloys as deoxidizing and alloying agents for molten steel during steel refining processes because Si is one indispensable alloying element in the high‐performance steels, such as transformation induced plasticity (TRIP) steel, etc., as well as in the advanced magnetic materials 1. The thermodynamic properties of Fe–Si binary melts, especially the activity of Si, have attracted tremendous focus in the past several decades since the 1940s 2–49. Turkdogan et al23 and Zaitsev et al43 reviewed the literature on the activity of Si in Fe–Si binary melts prior to 1963 and 2003, respectively.…”