Surface tension of selected CaO-MgO-Al2O3-SiO2 slag with low silica content
The surface tension in CaO-MgO-Al2O3-SiO2 slag with low silica was measured by the Slide method using the RTW-08 type-testing instrument from 1773K to 1873K. The measurements were carried out under reducing atmosphere. Nine different slag compositions were chosen based on three different levels of CaO content and three different levels of SiO2 content. The MgO content was equaled to 7.00 wt％. The CaO content were varied from 40.04 wt％ to 50.64 wt％, for SiO2 content between 10.25 wt％ and 20.70 wt％. Experimental results showed that, in general, the effect of the temperature on the surface tension of the selected slag system was not obvious. The results also indicted that the surface tension decreasing with the increase of the NBO/T ratio, and following by increasing with further increasing of the NBO/T ratio. Based on the experimental data as the boundary of the homogenous phase region predicated by FACTSAGE software. The mass triangle model was used to calculate the surface tension of selected limited homogenous phase region. The results showed the mass triangle model working well. The overall trend that the effects of component content on the surface tension was found in agreement with the experimental observation.
CaO-MgO-Al2O3-SiO2 surface tension low silica NBO/T ratio
Jifang XU Jieyu ZHANG Tang ZENG Jianchao LI Kuochih CHOU
Shanghai Key Laboratory of modern metal. and mater. processing, Shanghai University, Shanghai 200072 Shanghai Key Laboratory of modern metal. and mater. processing, Shanghai University, Shanghai 200072
国际会议
Ninth International Conference on Molten Slags,Fluxes and Salts(第九届国际熔渣、溶剂与熔盐学术会议 MOLTEN12)
北京
英文
1-9
2012-05-27（万方平台首次上网日期，不代表论文的发表时间）