Non-oxide Refractories have been applied widely in iron and steel making based on their high resistance to corrosion of slag and iron, high resistance to abrasion and thermal shock. Titanium Carbide is an excellent non oxide ceramics with high melting point, hardness and electrical conductivity with good wear resistance, corrosion resistance, thermal conductivity and good chemical stability. However, the use of titanium carbide in refractory industry is limited because of its high cost. The aim of the present investigation is to form in-situ titanium carbide in the matrix of the magnesia carbon system by adding free TiO_2. In the magnesia carbon system various percentages of nano titania is added in the matrix along with carbon. This is tempered and fired at 1450°Cin a coke powder bed atmosphere. The formation of titanium carbide in the matrix is confirmed by SEM accompanied by EDAX. Physical properties such as bulk density, cold crushing strength after tempering and after firing at 1400°C in a coke powder bed atmosphere are studied. Oxidation resistance of the samples is carried out. Abrasion resistance, both at room temperature and high temperatures are studied. Thermo- mechanical properties such as hot modulus of rupture, modulus of elasticity, thermal shock resistance and static corrosion resistance at 1600°C/3 hrs are also carried out.
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