Paper Title:
High Temperature Electrolysis of Ti and its Alloys with a DC-ESR Unit
  Abstract

Direct electrolysis of Ti and its alloys has been attempted by the process using a DC-ESR unit. The concept of the process is explained in detail, and the expected key issues are commented. Liquid Ti metal was obtained in a CaF2-CaO-TiO2 bath, and electrolysis by using a new type of the electrolytic cell was also tried. Ti-Al alloy was successfully deposited in a CaF2-CaO-TiO2-Al2O3 bath, whereas Ti-Si alloy was not obtained in a CaF2-CaO-TiO2-SiO2 bath yet. Ti-Fe alloy was extracted in CaF2-CaO-TiO2-FeO bath of a particular composition. A common correlation between the cathodic current efficiency and the average consumed electric power seen in the Ti, Ti-Al and Ti-Fe electrolysis suggested the importance of sufficient temperature in the process. The bath composition also affected the temperature through the change in the electric conductivity of the bath.

  Info
Periodical
Edited by
M. Ashraf Imam, F. H. Froes, Kevin F. Dring
Pages
85-91
DOI
10.4028/www.scientific.net/KEM.436.85
Citation
T. Takenaka, H. Matsuo, M. Sugawara, M. Kawakami, "High Temperature Electrolysis of Ti and its Alloys with a DC-ESR Unit", Key Engineering Materials, Vol. 436, pp. 85-91, 2010
Online since
May 2010
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