Carbon-containing calcined brick refractories

摘要

PROBLEM TO BE SOLVED: To provide a carbon-containing fired brick refractory having enhanced spalling resistance without elimination of a fibrous material even during decarbonization or dephosphorization of molten iron or the like by solving problems that the fibrous material is oxidized and eliminated because material quality of the fibrous material is nonoxide and crack propagation inhibition effect by bridging of fiber is lost in the case of a MgO-C brick refractory to which the fibrous material is applied, for example conventional nanomaterials.SOLUTION: There is provided a carbon-containing fired brick refractory 10 containing a fibrous material 12 constituted by oxide and at least one whisker 12 of spinel (MgAlO) whisker, magnesium silicate (MgSiO) whisker, magnesium silicate (MgSiO) whisker or mullite (3AlO2SiO) whisker as the fibrous material 12. There is provided a carbon-containing fired brick refractory 10 which preferably further contains an iron-containing article and further the content thereof is preferably 0.02 to 0.30 by metal iron equivalent.SELECTED DRAWING: Figure 5