Results of new integrated technological approaches to synthesis of ultrafine α-alumina using commercially available metallurgical alumina as a raw material are presented. The effect of seven different modes for calcination of the initial γ-Al2O3 in the temperature range 1200 – 1600°C is studied. It is revealed that experimental regimes determine the size of the primary crystals and milling capacity of firing products. It is established that by varying temperature regimes it is possible to obtain intentionally both monomodal and multimodal powders.
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Translated from Novye Ogneupory, No. 1, pp. 19 – 25, January, 2023.
Parts 1 – 3 of the article published in Novye Ogneupory Nos. 3, 4, and 7 of 2022 respectively.
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Trubitsyn, M.A., Volovicheva, N.A., Furda, L.V. et al. Research in the Area of Preparing Activated Alumina. Part 4. New Technological Approaches for Synthesis of Ultrafine α-Al2O3. Refract Ind Ceram 64, 21–26 (2023). https://doi.org/10.1007/s11148-023-00798-x
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DOI: https://doi.org/10.1007/s11148-023-00798-x