Sintering and mullitization are studied for specimens prepared on the basis of compound composition HCBS in the system bauxite – very fine quartz glass (VFQG), and also with addition of refractory clay. The nature of sintering and mullitization is governed to a considerable extent by SiO2 content in the original composition (VFQG + clay). Dilatometric studies of specimens previously fired at 1600°C established that depending on composition thermal expansion values in the range 20 – 1000°C are within the limits of 0.5 – 0.6%, which is close or comparable with similar data for pure mullite.
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V. N. Khabarov took part in this work.
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Translated from Novye Ogneupory, No. 6, pp. 31 – 38, June 2016.
1Parts 1 – 3 of the article published in Novye Ogneupory Nos. 8, 10, and 12 (2015) and parts 4 and 5 in Nos. 2 and 4 (2016).
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Pivinskii, Y.E., Dyakin, P.V. & Kolobov, A.Y. Research in the Field of Preparing Molded and Unmolded Refractories Based on High-Alumina HCBS. Part 6. Mullitization and Thermal Expansion of Materials Based on Compound Composition HCBS1 . Refract Ind Ceram 57, 297–303 (2016). https://doi.org/10.1007/s11148-016-9972-z
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DOI: https://doi.org/10.1007/s11148-016-9972-z