Conclusions
A study was carried out of the corrosion of mullite ceramics of varied porosity. The degree of corrosion varies with the original density of the ceramic. When the porosity is reduced by half the corrosion is also halved.
The ratio of the corrosion rate at the surface level of the glass melt to that at a given depth varies only marginally with the porosity of the ceramic and the period of exposure to the action of the glass melt.
The thickness of the intermediate layer increases with the porosity of the ceramic. The size of the corundum crystals in the intermediate layer increases with that of the mullite crystals in the original ceramic.
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The work was carried out in the Prague Institute of Chemical Technology, Czechoslovakia.
Deceased.
Translated from Ogneupory, No. 11, pp. 39–43, November, 1975.
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Kashcheev, I.D., Mamykin, P.S. & Bartushka, M. The corrosion of mullite ceramic by a sodium-containing silicate melt. Refractories 16, 702–705 (1975). https://doi.org/10.1007/BF01280605
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DOI: https://doi.org/10.1007/BF01280605