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Effect of Slag Impregnation on Thermal Degradations in Refractories
Author(s) -
Blond Eric,
Schmitt Nicolas,
Hild François,
Blumenfeld Philippe,
Poirier Jacques
Publication year - 2007
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01348.x
Subject(s) - slag (welding) , bauxite , materials science , degradation (telecommunications) , metallurgy , viscosity , oxide , liquid phase , refractory (planetary science) , thermoelastic damping , porosity , thermal , composite material , thermodynamics , telecommunications , physics , computer science
Degradation in bauxite refractory linings used in steel plants is localized in the slag‐impregnated zone of refractories. It is proposed to estimate the contribution of the pressure of the impregnated liquid on the degradation of refractories. The study of the gradient of chemical composition allows for the evaluation of the liquid content, the oxide content in the liquid phase, and the “slag” viscosity. The thermomechanical analysis of a porous refractory impregnated by slag enables us to propose analytical expressions for a rapid estimate of the maximum “slag pressure” and its location as well as the level of thermoelastic stresses.