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以（Ｍｏ／Ｍｏ２Ｏ）为参比电极，用固体电解质定氧测头对熔融钴基合金中氧活度进行快速测定的效果良好，利用与ＣｏＯ平衡时氧在钴液中的溶解度得到了氧在钴液中的标准溶解吉氏自由能与温度的关系，为氧活度计算提供了数据。
Using Mo / Mo2O as the reference electrode, the determination of oxygen activity in the molten cobalt-based alloy by solid electrolyte oxygen probe has a good effect. By using the solubility of oxygen in the cobalt liquid in equilibrium with CoO, oxygen The relationship between the standard solution of Gibbs free energy and temperature in cobalt liquid provides data for calculation of oxygen activity.