Carbon-containing refractory

Details Carbon-containing refractory Carbon-containing refractory

C - Chemistry, Metallurgy

04

B

261/25

C04B 35/54 (1985.01)

Patent

CA 1189093

ABSTRACT OF THE DISCLOSURE Carbon in the form of graphite is commonly used in refractories for metallurgical purposes because of its ability to increase resistance to corrosion. However, if the graphite in the refractory becomes oxidized, it greatly loses this ability. For this reason, it is very important for a refractory to have good resistance to oxidation, but there are at present no refractories fully satisfactory from the standpoints of re- sistance to oxidation and hot strength. The present invention is a carbon-containing refractory having excellent resistance to oxidation and hot strength. These favorable properties are obtained by the addition in the refractory of both boron carbide and metal powder, the powder comprising at least one metal selected from A?, Si, Fe, and Ni.

421635

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