10.30501/jamt.2011.70214
Abstract
The chemical corrosion behavior of fusion cast ZAS (ZrO2-Al2O3-SiO2) refractories inside lead silicate glass melt with 68.5 wt% PbO content was investigated at temperatures of 1200, 1250, 1300 and 1350ºC. Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Thickness Reduction and Archimedes Principle were used to evaluate morphology/composition/structure of (corroded and un-corroded) refractory probes. The attack of lead silicate glass melt was taken place by inter-diffusion of the more mobile constituents into glassy matrix. chemical reactions produced a low viscosity secondary glass composition and deteriorated the durability.
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