Quick Measurement of the Activity of Oxygen in Molten Co-based Alloys

Wang Ruiyin; Li Fushen; Li Liansheng; Li Lifen

doi:10.13374/j.issn1001-053x.1994.05.017

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Wang Ruiyin, Li Fushen, Li Liansheng, Li Lifen. Quick Measurement of the Activity of Oxygen in Molten Co-based Alloys[J]. Chinese Journal of Engineering, 1994, 16(5): 483-486. doi: 10.13374/j.issn1001-053x.1994.05.017

Citation:

Wang Ruiyin, Li Fushen, Li Liansheng, Li Lifen. Quick Measurement of the Activity of Oxygen in Molten Co-based Alloys[J]. Chinese Journal of Engineering, 1994, 16(5): 483-486. doi: 10.13374/j.issn1001-053x.1994.05.017

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Quick Measurement of the Activity of Oxygen in Molten Co-based Alloys

doi: 10.13374/j.issn1001-053x.1994.05.017

Department of Physical Chemistry, USTB, Beijing 100083

Received Date: 1993-01-14
Available Online: 2021-11-13

Abstract

Abstract

Using the solid electrolyte oxygen sensor with (Mo/MoO₂) reference electrode to quickly measure the activity of oxygen in molten Co-based alloys, the good results were obtained. The relation was obtained between the standard Gibbs free energy of solution of oxygen in liquid Co which is necessary for calculating the activity of oxygen and temperature by using the solubility of oxygen in the liquid Co being equipoised with CoO.
- cobalt,
- activity/oxygen sensor,
- Gibbs free energy of solution