Abstract
The electrical conductivities of CaO-SiO2-Fe2O3 and Na2O-SiO2-Fe2O3 melts were measured in order to find out the behavior of Fe2O3 in these systems. Since Fe3+ ion is the amphoterci cation, it may be assumed that Fe3+ ion in octahedral sites will contribute to the electrical conductivities of these melts, but not Fe3+ ion in tetrahedral sites.In the Na2O-SiO2 system, the oxygen coordination number of Fe3+ ion is changed at Na2O/Fe2O3\fallingdotseq1. When the ratio of Na2O/Fe2O3 in the melt is less than unity, Fe3+ ion tends to contribute to the electrical conductivity as a network modifier. On the other hand, Fe3+ ion will give no contributions to the electrical conductivity at the composition of Na2O/Fe2O3>1. The ratio of Fe3+(oct.)/Fe3+(tetr.) also varied with the basicity of melts.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Institute of Metals and Materials
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
