Conclusions
The structure and properties of periclase articles have been studied as a function of the quality of the powders and the grain composition of the batch. The possibility of obtaining periclase refractories with a high density (open porosity 8–12%) and heat resistance (11–16 heat cycles into water) is shown. In order to obtain strong dense articles with an enhanced heat resistance, it is recommended that dense powders with a fine-crystal structure be used; additional recrystallization during the high-temperature firing helps to strengthen the articles.
The addition of 1% ZrO2 improves the properties of the articles, which is the result of the strengthening of the diffusion processes capable of forming strong direct bonds between the periclase crystals in the aggregates and the bonding material.
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Literature cited
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Deceased.
Translated from Ogneupory, No. 2, pp. 52–57, February, 1979.
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Akishev, A.K., Babin, P.N. & Zubakov, S.M. Effect of the grain composition of the batch on the structure and properties of periclase refractories. Refractories 20, 119–124 (1979). https://doi.org/10.1007/BF01281944
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DOI: https://doi.org/10.1007/BF01281944