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Cast (Self-Flow) Ceramic Castables. 4. Spreadability of Molding Systems and Some Properties of Mullite – Silicon Carbide Ceramic Castables

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Refractories and Industrial Ceramics Aims and scope

Abstract

The rheological properties of molding systems are shown to depend on the spreadability of the mixture under the action of its own mass; some of the factors influencing the self-flow are determined, namely, the moisture content, the content of the filler, and the temperature of the mixture. The described self-flow castables based on a mullite HCBS and a SiC filler have a porosity of 18% after drying and 16 – 16.5% after heat treatment. Their ultimate bending strength is 45 MPa and the ultimate compressive strength is 110 MPa, which is higher than those of the known refractories of similar compositions. The temperature of 4% deformation of mullite – silicon carbide refractory heat treated at 1350°C and having C Vf = 0.4 is 1710 – 1720°C, which is 70 – 80°C higher than that of a similar material molded by pressing and heat treated at 1500°C.

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  1. Belgorod State Engineering Academy for Building Materials,, Belgorod,, Russia.

    M. A. Skuratov & Yu. E. Pivinskii

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  1. M. A. Skuratov
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  2. Yu. E. Pivinskii
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Skuratov, M.A., Pivinskii, Y.E. Cast (Self-Flow) Ceramic Castables. 4. Spreadability of Molding Systems and Some Properties of Mullite – Silicon Carbide Ceramic Castables. Refractories and Industrial Ceramics 42, 23–29 (2001). https://doi.org/10.1023/A:1011388817677

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