Effect Microsturctural Modifications at High Temperature on The Work of Fracture of Magnesia-Carbon Rrefractories

S.E. GASS; A.G. TOMBA MARTINEZ; P.G: GALLIANO; N. BELLANDI; C. BAUDÍN

Santiago

Congreso; Unitecr 2017; 2017

Comité organizador Unitecr 2017

Graphite containing refractories are highly resistant to mechanical and thermal cycles. The mechanical parameter that determines the resistance of the materials to crack development under subcritical conditions is the work of fracture. This parameter depends on the microstructure of the materials and, particularly, on the nature of the matrix. As-fabricated, unfired MgO?C and MgO-C-antioxidant bricks have very low porosity (