info:eu-repo/semantics/conferenceProceedings
IMPROVEMENT OF AN ELECTROFUSED MGO-CAZRO3 REFRACTORY MATRIX BY THE ADDITION OF HERCYNITE SPINEL AND MAGNESIUM-ALUMINIUM SPINEL FOR THE CEMENT INDUSTRY
Autor
GUADALUPE ALAN CASTILLO RODRIGUEZ
Resumen
The development of innovative chrome-free basic bricks based on
electrofused MgO-CaZrO3 technology using as ceramic bonding
two different types of spinel (hercynite and magnesium-aluminium
spinel) to improve their properties is presented. Microstructural,
physical, mechanical, and thermal properties of electrofused
MgO-CaZrO3 matrix were determined. Static and dynamic resistance
tests by chemical attack of cement raw constituents were carried
out. The results showed that thermo-mechanical properties
of new bricks significantly improved with increasing spinel content.
Microstructural analysis revealed that the spinel phase aided
to develop a strong bond between the magnesia and calcium zirconate
refractory phases. Finally, this refractory matrix exhibits a
good thermal stability and excellent chemical resistance against
cement raw meal.
Materias
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