Experimental Investigations of Phase Equilibria of MnS Containing Sub-systems in the MnO–SiO2–Al2O3–MnS System

Dae-Hee Woo, Youn-Bae Kang, Henri Gaye, Hae-Geon Lee
2009 ISIJ International  
Phase equilibria of the MnO-MnS, MnO-SiO 2 -MnS, and MnO-Al 2 O 3 -MnS systems under low oxygen partial pressure have been experimentally investigated for the temperature range of 1 200 to 1 500°C using equilibration and quenching techniques. Equilibrium phases were analyzed by Scanning Electron Microscope, Electron Probe X-ray Microanalysis (EPMA), and Differential Thermal Analysis (DTA). Phase diagrams were successfully constructed for the systems investigated. A ternary compound in the
more » ... mpound in the MnO-SiO 2 -MnS system was observed at 1 200°C and 1 250°C. No ternary compound or solid solution was observed in the MnO-Al 2 O 3 -MnS system. The results of the present study were critically compared with the results reported previously. KEY WORDS: MnO-MnS system; MnO-SiO 2 -MnS system; MnO-Al 2 O 3 -MnS system; phase equilibria; inclusions; oxide metallurgy.
doi:10.2355/isijinternational.49.1490 fatcat:fns4qzjdnzcg7c6vbnf3fwzdqi