Thermodynamics of the MnO-SiO_2-TiO_2 System at 1673 K
The isothermal phase relations for the MnO-SiO<sub>2</sub>-TiO<sub>2</sub> system have been investigated at 1673 K by a chemical equilibration technique. Iso-activity curves for MnO are drawn from the experimental results of the activities as well as those for SiO<sub>2</sub> and TiO<sub>2</sub> calculated by Schuhmann's tangent intercept procedure.<sup>1)</sup> Iso-activity curves are nearly parallel to the saturation lines for the respective components. In this system, the interaction between MnO and SiO<sub>2</sub> is the strongest of all.<br> The sulfide capacity mostly depends on MnO content in this ternary system. It slightly increases when SiO<sub>2</sub> is replaced by TiO<sub>2</sub> at a constant (MnO+MnS) content by molar basis, whereas γ<sub>MnS</sub> considerably decreases.
- ISIJ international
ISIJ international 37(9), 839-843, 1997-09-15
The Iron and Steel Institute of Japan