摘要
基于熔渣结构离子与分子共存理论和Butler方程,建立了CaO-MnO-SiO2熔渣表面张力计算模型。模型利用纯组元的表面张力和摩尔体积以及熔渣中各组元表面相和体相中作用浓度(活度)可以计算出CaO-MnO-SiO2熔渣表面张力随熔渣成分、温度的变化规律。表面张力的计算结果与文献介绍的值吻合很好。计算了1773 K下CaO-MnO-SiO2渣系的等表面张力线,并进一步考察了炉渣成分对表面张力的影响。
The calculation model of surface tension of CaO-MnO-SiO2 molten slag was established based on the coexistence theory of ions and molecules for molten slag structure and Butler＇s equation. The change rule of surface tension with molten slag composition and temperature can be computed by the model using the surface tension and the molar volume of pure components and the action concentrations（activities） of each element of surface and bulk phase in the molten slag.The computed results for the surface tension are good agreements with the literature data. The iso-surface tension lines of CaO-MnO-SiO2 slag system at 1773 K were calculated and the effects of slag composition on the surface tension were also investigated.
出处
《热加工工艺》
CSCD
北大核心
2014年第19期58-62,共5页
Hot Working Technology
基金
国家自然科学基金资助项目(50734008)
