
handle: 10261/3942
[ES] En el presente trabajo se ha establecido entre 1100º y 1800ºC la microquímica y microestructura de materiales de MgO-C-Al con elevado contenido en MgO y para diferentes relaciones Al/C, en condiciones fuertemente reductoras. Los resultados experimentales obtenidos se han discutido en función de la estabilidad termodinámica de las diferentes fases del sistema MgO-C-Al, determinadas teóricamente a distintas temperaturas y presiones parciales de Mg(g), Al(g) y CO (g). La combinación de ambos estudios, ha permitido realizar una descripción completa del proceso de reacción que tiene lugar en las composiciones estudiadas.
[EN] The microchemistry and microstructure of MgO-C-Al materials with high magnesia content and different Al/C ratio have been established between 1100º and 1800ºC, under strong reducing condition. The experimental results have been discussed as a function of thermodynamic stability of different phases of the MgO-C-Al system, theoretically determined at different temperatures and partial pressures of Mg(g), Al(g) and CO(g). Both studies have allowed established a complete description of the reaction process in all compositions studied.
Este trabajo ha sido financiado por el proyecto MAT-2004-04923-C02-01.
Peer reviewed
Aluminio, Magnesia, Relación Al/C, graphite, aluminium, Thermodynamics stability, grafito, Clay industries. Ceramics. Glass, thermodynamics stability, aluminio, Grafito, TP785-869, Estabilidad termodinámica, Aluminium, Graphite, Al/C ratio, relación Al/C, estabilidad termodinámica, Magnesium oxide
Aluminio, Magnesia, Relación Al/C, graphite, aluminium, Thermodynamics stability, grafito, Clay industries. Ceramics. Glass, thermodynamics stability, aluminio, Grafito, TP785-869, Estabilidad termodinámica, Aluminium, Graphite, Al/C ratio, relación Al/C, estabilidad termodinámica, Magnesium oxide
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