Acta Metallurgica Sinica (English Letters) ›› 1990, Vol. 3 ›› Issue (10): 231-235.

• Research paper • Previous Articles     Next Articles

ELECTROCHEMICAL STUDY OF ACTIVITY OF Nb_2O_5 AND MnO IN Nb_(?)O_(?)-MnO-SiO_(?)SYSTEM

ZHANG Shengbi WEI Shoukun WANG Ruiyin LI Liman University of Science and Technology Beijing,Beijing,China ZHANG Shengbi Professor,Dept.of Metallurgical Physical Chemistry,University of Science and Technology Beijing,Beijing 100083,China   

  • Received:1990-10-11 Revised:1990-10-11 Online:1990-10-11 Published:2009-10-10

Abstract: Equilibrium between liquid iron containing Nb with Nb_2O5-MnO-SiO_2 slag was investigated at 1828 K,the solid electrolyte oxygen concentration cell being used to measure the activity of oxygen in the metal bath.The activity of Nb_O_5 and MnO in the slag was evaluated, accompanied with an iso-activity diagram of a_(Nb_2O_5) and a_(MoO) in Nb_2O_5-MnO-SiO_2 slay.

Key words: activity, Nb_2O_5-MnO-SiO_2 system, slag