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Erschienen in:
01.02.2012
Experimental Study of Ferrous Calcium Silicate Slags: Phase Equilibria at \( {\text{P}}_{{{\text{O}}_{2} }} \) Between 10−5 atm and 10−7 atm
Erschienen in: Metallurgical and Materials Transactions B | Ausgabe 1/2012
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Abstract
Ferrous calcium silicate slags, whose principal components are “FeO
x
”-CaO-SiO2, are widely used in copper smelting and converting operations. In the current study, high-temperature equilibration and rapid quenching techniques were used to study the phase equilibria of the ferrous calcium silicate slags. The compositions of phases in the slags were measured accurately using electron probe X-ray microanalysis (EPMA). The phase equilibria of the system have been characterized at oxygen partial pressures between 10−5 atm and 10−7 atm at selected temperatures between 1473 K and 1623 K (1200 °C and 1350 °C). The effects of oxygen partial pressure and temperature on the compositions of phases in the slags are presented.