Abstract
The effect of lignosulfonate (LST) and surface-active substances (SAS) on compaction and properties of bauxite-quartz glass matrix systems is studied. LST added at an optimum concentration to bauxite-based highly concentrated ceramic binding suspensions (HCBS) causes a 2–3% decrease in preform porosity. In materials sintered at high temperature the effect of decreased porosity is more pronounced. In preforms molded at 500–700 MPa no defect due to overpress is observed. The SAS, judged from their efficiency for decreasing porosity, are arranged in ascending order: sodium silicate water glass, sodium tripolyphosphate, complex organomineral thinner, and FS-20 castament.
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Translated from Novye Ogneupory, No. 4, pp. 126–133, April, 2006.
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Pivinskii, Y.E., Dyakin, P.V. & Dyakin, P.V. Pressure-molded high-alumina ceramic castables. 3. Effect of processing additives on pressure-induced compaction and properties of bauxite-quartz glass matrix systems. Refract Ind Ceram 47, 132–138 (2006). https://doi.org/10.1007/s11148-006-0072-3
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DOI: https://doi.org/10.1007/s11148-006-0072-3