Abstract
The method of wet milling with step loading of the material has been used to prepare HCBS with a moisture content of 12–13% (the volume concentration of the solid phase ≤ 0.7) on the base of an available natural raw material, i.e., Chinese bauxite. The suspension is characterized by thixotropic-dilatant flow. The time of stabilization of the suspension by the method of gravitational mixing is shown to affect its rheological and technological properties more than those of HCBS of other compositions. The reduction of the viscosity of the suspension (by a factor of 4) decreases the porosity of the castings by 50–70 rel.% and increases their strength characteristics to 130–150 MPa after heat treatment at 1000‡C.
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Translated from Ogneupory i Tekhnicheskaya Keramika, No. 6, pp. 21–26, June, 2000
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Dobrodon, D.A., Pivinskii, Y.E. Fabrication and properties of binders for high-alumina suspensions. 1. HCBS based on bauxite. Refract Ind Ceram 41, 205–210 (2000). https://doi.org/10.1007/BF02693729
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DOI: https://doi.org/10.1007/BF02693729