After a high alloy is poured into a corundum-sillimanite mold the phase composition in the mold changes and the chemical activity of the mold increases. The post-kilning and post-filling phase composition of disthene-sillimanite is studied. It is proposed that alumina be added to disthene-sillimanite and the mixture be kilned at temperature 1643 K. As a result mullite will form and have a positive effect on the quality of the mold. The new refractory powder can be used to form the lining layer of the ceramic mold.
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Translated from Steklo i Keramika, No. 8, pp. 28 – 31, August, 2011.
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Stadnichuk, V.I., Bessmertnyi, V.S. Phase transformations in a ceramic mold filled with high alloy. Glass Ceram 68, 263–266 (2011). https://doi.org/10.1007/s10717-011-9368-y
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DOI: https://doi.org/10.1007/s10717-011-9368-y