Effect of sintering activators on the mineralization of α-Al₂O₃ during heat treatment of alumina

V. I. Vereshchagin, P. M. Pletnev, A. D. Shil'tsina

The Kizhner Research Center

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Abstract

Additions of Y₂O₃, MgO, and SrO are not only activators of the sintering of alumina but are also excellent mineralizers of corundum. The beneficial effect of these additions in the preparation of GA85 alumina for the production of a dense corundum ceramic is seen in the speeding up of processes by which the transitional forms of the aluminum oxide is transformed into α-Al₂O₃, the speeding up of the formation of its (α-Al₂O₃) structure, and in the increase in the apparent density while still retaining its activity for sintering.

Original language	English
Pages (from-to)	379-382
Number of pages	4
Journal	Refractories
Volume	20
Issue number	5-6
DOIs	https://doi.org/10.1007/BF01284669
Publication status	Published - May 1979

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ASJC Scopus subject areas

Ceramics and Composites
Engineering(all)

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Vereshchagin, V. I., Pletnev, P. M., & Shil'tsina, A. D. (1979). Effect of sintering activators on the mineralization of α-Al₂O₃ during heat treatment of alumina. Refractories, 20(5-6), 379-382. https://doi.org/10.1007/BF01284669

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10.1007/BF01284669