Silicon carbide refractory castables

Optimum formulations for castables intended for different service conditions are proposed. Silicon carbide castables containing ultradisperse particles of cement, silica fume, and electrofused corundum have been developed. The castables do not weaken on heating and display superior operational prope...

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Bibliographic Details
Published in:Refractories and industrial ceramics 2005-11, Vol.46 (6), p.412-415
Main Authors: Kamenskikh, V A, Kashcheev, I D, Mityushov, N A, Gulyaev, A A, Kotova, M V, Kiselev, A S, Leshkeev, S A
Format: Article
Language:English
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Summary:Optimum formulations for castables intended for different service conditions are proposed. Silicon carbide castables containing ultradisperse particles of cement, silica fume, and electrofused corundum have been developed. The castables do not weaken on heating and display superior operational properties. The compressive strength is 40-80 MPa at a sintering temperature of 400 C and 50-85 MPa at 1300 C. The strain onset temperature under a load of 0.2 MPa is 1700-1510 C. Thermal stability (1300 C - water) is better than 45 heating/cooling cycles (1300 C - water). No change in linear and volume dimensions was seen on heating. The newly-developed castables can be used in various sectors of industry, in particular, as the refractory material for the lining of Whiting furnaces and porcelain kilns. 2 refs.
ISSN:1083-4877
1573-9139
DOI:10.1007/s11148-006-0037-6