Mixed suspensions in the molten quartz — bauxite system give castings with a much higher concentration and a lower porosity than HCBS based on alumina. Castings with a porosity of σ 14% have been obtained in mixed systems bearing 60 – 70% bauxite. The dependence of the porosity of the castings on the thermal expansion of heat-treated materials with a mixed composition is not additive. Materials bearing 50 – 80% bauxite have maximum strength properties. The ion potential of the solid phase of the initial suspension has the greatest effect on the rheotechnological properties of the suspensions.
Refractories and Industrial Ceramics – Springer Journals
Published: Aug 26, 2007
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