Electrochemical Deoxidation of Molten Steel with Application of an Oxygen Permeable Membrane

Effect of Applied Voltage on Electroreduction with Controlled Oxygen Flow of Molten Slag Containing FeO at 1723 K

“…In other applications, a dynamic mode of operation is employed and the close circuit current or voltage is measured as a function of time. Cells operating in this manner have been used in such applications as diffusion coefficient measurements [29][30][31][32][33] and electrolysis with COF which includes electrolytic refining of molten metal [34][35][36][37][38][39][40][41][42][43] and the above mentioned extraction of metal from molten salt systems. [9][10][11][12][13][14]44,45) However, little work has been done on extraction of metal from high-temperature molten oxide systems.…”

Zirconia as a high temperature oxygen-permeating membrane: The effect of GDC and LaCrO3 surface coating

“…1 shows the ionic and the electronic conductivity of YSZ material at 1600 o C as a function of P O 2 . The ionic conductivity was obtained from the electrical conductivity measurement [9] and the p-type hole and the n-type electronic conductivity [5] were obtained from the permeation measurements. Since our experimental range of P O 2 is between 6× 10 −12 and~1× 10 −8 atm as shown in the figure, the permeation is limited mostly by the minor, n-type electronic conductivity.…”

A New Design of Oxygen Sensor for Electromotive Force Measurement and Electrochemical Deoxidation by Using Oxygen Pump

“…Several researchers attempted to develop this technology by using similar apparatus mentioned above, i.e., an oxygen sensor with different metallic lead wire, such as chromel (Ni-Cr alloy), Mo, Pt and so on. [10][11][12][13][14][15][16][17] Nevertheless, there is no evidence on which we can avoid the oxidation of metallic lead wire at high temperature. The result of low oxygen concentration in molten metals might be caused by both electrochemical and chemical deoxidation in the previous works.…”