|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Real Time Optical Imaging
||Using High-temperature Confocal Scanning Laser Microscopy to Study Transient Phenomena: Swelling and Spontaneous Emulsification
||Stephen Richard Alan Spooner, Ian Moore, Sridhar Seetharaman, Zushu Li
|On-Site Speaker (Planned)
High-temperature confocal scanning laser microscopy has been used as a tool for the kinetic mapping of coal swelling and liquid metal spontaneous emulsification (SE); both of which are highly significant within steelmaking process. Coals of differing petrography have been imaged via a black body method. Taking advantage of the high UV laser reflectivity of polished platinum crucibles, sharp edges can be attained for “out of focus” coal particles. Observed swelling behaviours are thought to replicate those during coal injection in existing and novel ironmaking processes.
In-situ observation of metal droplets of FeAl 0 to 8% suspended in a transparent slag containing high levels of SiO2 has been achieved. Quantification of droplet surface area is conducted and a change in behaviour with respect to SE is observed between 3 and 4% Al. The findings of such behaviour have consequences when considering impurity removal and liquid composition stability.
||Planned: Supplemental Proceedings volume