Conclusions
The composition was developed for a corundum refractory, the characteristics (other than the chemical and mineral compositions) and metal resistance of which are on the level of those of an imported tested refractory.
A phosphate binder reduces the porosity and increases the strength, thermal-shock resistance, and metal resistance of corundum brick.
Added zircon and kyanite-sillimanite concentrates and ZrO2, whether stabilized with yttrium oxide or unstabilized, affect the metal resistance of the refractory adversely but added B2O3 does not.
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Translated from Ogneupory, No. 3, pp. 41–46, March, 1977.
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Rabinovich, M.A., Grigor'ev, I.V., Karaseva, M.D. et al. The effect of additives on the properties of phosphate-bonded corundum refractories. Refractories 18, 169–174 (1977). https://doi.org/10.1007/BF01281587
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DOI: https://doi.org/10.1007/BF01281587