Abstract
ABSTRACT The phases and the phase assemblages present in selected industrial iron ore sinters have been analysed. A new experimental laboratory-based procedure has been developed that enables sintering experiments to be undertaken under controlled temperature and gas conditions. The results indicate that the formation of the complex silico ferrite of calcia and alumina phase (SFCA) phase is strongly influenced by the sinter bulk composition. Within the range of compositions of interest to industrial iron ore sintering, an increase of CaO/SiO2 ratio facilitates the growth of the SFCA phase and the addition of Al2O3 increases the stability of the SFCA at elevated temperatures. Decreasing the oxygen partial pressure not only decreases the liquidus temperature but also lowers the relative stability of the SFCA phase. These observations are consistent with results obtained from phase equilibria studies of these systems, and indicate clear links between phase equilibria, melt solidification processes and sinter product microstructures.
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 callDisclaimer: 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.
