Design of Miniaturized Ka Waveband Rx RF Front-End Module

Modeling Viscosity of High Titania Slag

“…In the present work, viscosity measurements were performed in a customized vacuum high-temperature furnace (maximum temperature: 1800°C) under argon atmosphere, and a Mo crucible was used as the slag container, as mentioned in our previous work. [3] Zhang et al [10] obtained viscosity data by FactSage calculation based on the Einstein-Roscoe equation and also took experimental measurements from the liquidus Fig. 7-Predicted viscosity dependence on the slag composition in the TiO 2 -FeO system at different temperatures compared with (a) the literature [24] and (b) this work.…”

“…Except for the experimentally determined viscosity for the ternary TiO 2 -FeO-Ti 2 O 3 system, only Zhang et al [10] reported viscosity data for this ternary system in the literature. In the present work, viscosity measurements were performed in a customized vacuum high-temperature furnace (maximum temperature: 1800°C) under argon atmosphere, and a Mo crucible was used as the slag container, as mentioned in our previous work.…”

“…Figure 10 shows the temperature dependence on the calculated viscosities in the TiO 2 -FeO-Ti 2 O 3 system by the present model. The experimental data in the literature [10] and this work are also superimposed. Most of the experimental data show good agreement with the current model at the low-viscosity range, but small differences exist at the high-viscosity domain.…”

“…Kim et al [9] experimentally measured the viscosity of TiO 2 -FeO binary slags and published three sets of similarly low level of viscosity data in their paper. Zhang et al [10] first conducted a thermodynamic simulation and then experimentally studied the viscosity of the TiO 2 -FeO-Ti 2 O 3 ternary slags. They also found that once completely melted, high titania slags displayed very low viscosity and were very insensitive to the temperature and slag compositions.…”

“…[23] In the present work, the viscosities of TiO 2 -FeO and TiO 2 -FeO-Ti 2 O 3 slags were measured experimentally using the rotating cylinder method under argon atmosphere. The present measurements together with our previous measurements as well as the literature data [8][9][10]24] were used to optimize the present viscosity model. This model was developed according to the modification of the Vogel [25] -Fulcher [26] -Tammann [27] (VFT) semi-empirical formalism.…”