Abstract

Abstract Experimental studies have been conducted to determine the primary phases and liquidus temperatures in the “SnO2” – CaO – SiO2 system in air between 1693 and 1898 K, using high temperature equilibration and quenching followed by electron probe X-ray microanalysis. The following primary phase fields were identified: CaSiSnO5 (malayaite), Ca3Si2SnO9 (tricalcium tin silicate), CaSiO3 (pseudo-wollastonite), Ca2SiO4 (dicalcium silicate), SiO2 (tridymite and cristobalite), SnO2 (cassiterite) and CaSnO3 (calcium stannate).

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