Abstract
Interaction of refractory phase nanoparticles (Al2O3) with a surfactant in Fe–Sn melt resulting in removal of the nanoparticle + Sn complexes to the Me–ceramic or Me–gas interface is investigated. Using the method of atomic emission spectrometry with inductively coupled plasma were developed new methods of quantitative determination of the different modes of occurrence of aluminum in iron alloys: Al, dissolved in metal and aluminum—in the form of corundum Al2O3. It is shown that, owing to adsorption interaction of Al2O3 particles with Sn, the part of Sn removed from the melt is 22.5%, while the part of Al2O3 nanoparticles removed in the form of Fe + (Al2O3 + Sn) complexes is 65%. Up to 98% of aluminum in the melt is found in the form of Al2O3 particles and the only ~2% is in the solution.
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