Artículo
Chemical degradation of magnesia–carbon refractories by different gaseous atmospheres
Fecha de publicación:
03/2024
Editorial:
Elsevier
Revista:
Carbon Trends
ISSN:
2667-0569
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work, we use a novel methodology to analyse how the critical compositional variables of MgO–C bricks affect their chemical degradation by oxygen attack; the study focuses on the effect of the graphite content, the presence of aluminium, and the binder type. Oxidation tests are performed at 1000 ◦C, a typical preheating condition for steelmaking ladles, under two atmospheric conditions: one simulated the oxygen concentration in air, and the other, with a lower amount of oxygen, reproduces the conditions of the inner part of the brick when liquid steel is present. It was found that: a) the addition of Al reduces the carbon oxidation kinetic, mainly at a low O2 partial pressure, b) increasing the graphite content led to a smaller decarburized area with higher O2 consumption, and c) mixing CarboRes® with phenolic resin resulted in a higher O2 consumption but at a slower oxidation rate.
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Moliné, Marcos Nahuel; Galliano, Pablo German; Tomba Martinez, Analia Gladys; Chemical degradation of magnesia–carbon refractories by different gaseous atmospheres; Elsevier; Carbon Trends; 14; 3-2024; 1-10
Compartir
Altmétricas