Abstract
High-alumina bonding slurries using fine-grained fused mullite were prepared by single-stage wet grinding. They had a moisture content of 12% and a deficit of fine-size fractions (<1 μm). An amount of fine-grained fused silica slurry as waste fluid from the centrifugal forming of steel-casting silica refractories was then added to the mullite slurry. The silica slurry sharply reduced the dilatancy of the mullite slurry, the porosity of the binder, and the thermal expansion of both the original and heat-treated binder.
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Translated from Ogneupory i Tekhnicheskaya Keramika, No. 11, pp. 2–6, November, 1997.
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Pivinskii, Y.E., Doroganov, E.A. & Dobrodon, D.A. Materials using high-alumina bonding slurries. Properties of blended mullite—Fine-ground fused silica binders. Refract Ind Ceram 38, 409–413 (1997). https://doi.org/10.1007/BF02767943
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DOI: https://doi.org/10.1007/BF02767943