Article ID Journal Published Year Pages File Type
1471631 Corrosion Science 2008 5 Pages PDF
Abstract

Tin dioxide (SnO2) based ceramics are used to form ceramic electrodes used in glass melting techniques. In this paper, MnO2-doped SnO2-based ceramics were prepared by pressureless sintering, and the evolution of the microstructure of SnO2-based ceramics in molten glass liquid was studied by SEM, EPMA and EDX. The thin boundary phase has corrosion resistance to glass liquid at high temperatures. However, the thick intergranular layer is very easily attacked by glass liquid through the dissolution mechanism. Furthermore, the corrosion of SnO2 grains should be controlled by the diffusion process. Based on our results, a schematic diagram illustrating the corrosion behaviour of SnO2 based ceramics in molten soda-lime–silicate glass liquid is presented.

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Physical Sciences and Engineering Materials Science Ceramics and Composites
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