欢迎登录材料期刊网
ZHANG Chengtao JI Chunlin Northeast University of Technology , Shenyang , China ZHANG Chengtao , Division of Physical Chemistry of Metallurgy , Northeast University of Technology , Shenyang , China
金属学报(英文版)
The activity of MgO in MgO-B2O_3 melt was experimentally determined at 1773 and 1823 K by means of slag-liquid Sn equilibrium.The activity of B_2O_3 was calculated by integrating Gibbs-Duhem equation.The standard Gibbs energies of formation of binary compounds 2MgOB_2O_3 and 3MgO·B_2O_3 were estimated with the activity data of components in B_2O_3-MgO melt.
关键词: MgO-B_2O_3 , null , null
张成弢 , 冀春霖
金属学报
本文以Sn作为金属熔剂,石墨作为还原剂用,“渣-金”化学平衡法在1500和1550℃下,测定了MgO-B_2O_3二元系熔渣中Mgo的活度,并采用α函数积分法求得了该二元系熔渣中B_2O_3的活度。此外,由B_2O_3和MgO的活度数据估算了复合化合物2MgO·B_2O_3和3MgO·B_2O_3的标准生成自由能。
关键词: MgO-B_2O_3系 , slag , activity
