研究論文
静滴法による溶融スラグの表面張力の測定
1976 年 48 巻 12 号 p. 779-783
詳細
1976 年 48 巻 12 号 p. 779-783
The value of surface tension of the molten ternary system of SiO2-CaO-Al2O3 was 550-610dyne/cm in the temperature range of 1,350-1,450°C. Comparing the value obtained in this work with the data by Popel and Esin almost in the same slag composition, our data was a little higher. Surface tension of molten slags decreased by the addition of Na2O. Though the temperature dependency was not so extensive, the surface tension of this system decreased gradually by raising the temperature. When Na2SiF6 was added into the slag, fluorine is considered to vaporize as SiF4 from the surface of molten slag and most of them is lost. Therefore, the effect of Na2SiF6 addition on the surface tension of molten slags was similar to the effect of Na2O added singly.
