The mechanism of ZnO sulfidation with sulfur and iron oxide at high temperatures was studied. The thermodynamic analysis, sulfidation behavior of zinc, phase transformations, morphology changes, and surface properties were investigated by HSC 5.0 combined with FactSage 7.0, ICP, XRD, optical microscopy coupled with SEM-EDS, and XPS. The results indicate that increasing temperature and adding ir...

Thermodynamic calculations using the critically evaluated and optimized FactSage databases lead to conclusion that chondrules of all types were formed from a “rain cloud” undercooled liquid oxide droplets in equilibrium with solar nebula. The subsequently solidified rapidly stochastically temperature pressure gradients nebula form solid retained compositions thereafter no longer thermodynamic n...

To have a better understanding of the wetting behavior Sn-based solders on aluminum substrate, s series comparative experiments with Sn, Sn-3.5Ag (SA), and Sn-3.0Ag-0.5Cu (SAC305) were performed by direct heating hot plate normal flux in air. The morphology was measured cross-section images using scanning electron microscope (SEM), intermetallic compounds, at interface after heating, identified...

An immiscible alloy with an amorphous phase, Al–Co–La–Bi, was designed by the combination of empirical parameters mixing entropy, predicted ground state diagram constructed Materials Project for database ab initio calculations, and thermodynamic calculations using FactSage software FTlite database. The solidification microstructure rapidly solidified melt-spun ribbons Al–Co–La–Bi investigated f...

The binary MgO–ZnO and CaO–ZnO systems the ternary CaO–MgO–ZnO system were thermodynamically optimized with phase equilibria studies in this study. Bragg-Williams random mixing model was used for solid solutions, while Modified Quasichemical Model liquid solution. thermodynamic optimization conducted using Factsage 8.1 thermochemical software. diagrams fit well experimental results. performed a...

Environmental barrier coatings (EBCs) are used in commercial turbine engine applications as protection for ceramic matrix composites, yet the high-temperature water vapor reaction mechanism EBC materials is not fully understood. Here, barium strontium alumino-silicate (BSAS), an early generation candidate, was determined from time and temperature dependences of material loss. BSAS exposures wer...

A kinetic model for hot metal pretreatment process was developed. The co-injection of soluble magnesium and insoluble lime, both the transitory permanent contact reaction zones were considered in present model. That is, covers all general features desulfurization submerged powder injection, practiced at steel plants. based on effective equilibrium zone approach combination with FactSage thermod...

In this study, the in situ compressive strength of iron coke high-temperature carbonization was investigated. The strengths briquettes with 20, 30, and 40% ore at 700, 800, 900, 1000°C for 3 h were systematically studied. mass loss microstructure during also results showed that increased content from 20 to 40%. liquid phase slag calculated using FactSage software. Results an increasing temperat...

A new equilibrium calculation model for the slag composition design of bearing steel is established through combination between IMCT and FactSage software. With this model, could be obtained quantitatively when initial compositions were given. It validated by comparison predictive results with experimental data different system, reflecting reliability model. After that, effects Al in as well Ca...