Affiliation:
1. College of Materials Science and Engineering, Chongqing University, Chongqing, China
2. North West Insititute for Nonferrous Metal Research, Xian, China
Abstract
The ferrotitanium alloy was prepared in the molten CaCl2 system, in which
resolidified ilmenite and the graphite crucible were used as cathode and
anode. In this study, the electrolytic voltage was fixed at 3.1V, and three
different temperatures were applied: 850oC, 875oC and 900?C. Finally, the
product was examined by SEM and XRD to determine the phase transformation
after the electrolysis. The results show that the ilmenite was firstly
reduced to Fe, and finally the TiFe alloy was formed. The intermediate
products include CaTiO3, TiO2, Ti2O3, TiO, Fe, TiFe2, and Ti. Different
product and structure can be obtained by changing temperature. According to
thermodynamic calculation, the principal electroreduction products are Ti and
TiFe2 and then Ti and TiFe2 are formed by interdiffusion which is governed by
temperature.
Publisher
National Library of Serbia
Subject
Materials Chemistry,Metals and Alloys,Mechanics of Materials,Geotechnical Engineering and Engineering Geology
Cited by
10 articles.
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