Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates

Aiming at optimizing properties of alumina-spinel refractory castables, coarse corundum particles were replaced partially with the particles of a novel porous multi-component CMA (CaO-MgO-Al(2)O(3)) aggregate in the same size. Properties including the bulk density, apparent porosity, strength, slag...

Descripción completa

Detalles Bibliográficos
Autores principales: Tang, Hai, Li, Chunxue, Gao, Jianying, Touzo, Bruno, Liu, Chunfeng, Yuan, Wenjie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8199874/
https://www.ncbi.nlm.nih.gov/pubmed/34205054
http://dx.doi.org/10.3390/ma14113050
Descripción
Sumario:Aiming at optimizing properties of alumina-spinel refractory castables, coarse corundum particles were replaced partially with the particles of a novel porous multi-component CMA (CaO-MgO-Al(2)O(3)) aggregate in the same size. Properties including the bulk density, apparent porosity, strength, slag corrosion resistance, thermal shock resistance and thermal fatigue resistance of alumina-spinel refractory castables containing CMA aggregates were evaluated contrastively. The results demonstrated that the incorporation of CMA aggregates can significantly improve thermal shock resistance and thermal fatigue resistance of castables, although companying with slight decrease in the bulk density and strength. Moreover, slag penetration resistance of castables can also be enhanced by CMA aggregates with appropriate particle size. The influence of CMA aggregates on properties of alumina-spinel refractory castables depended strongly on their particle size.

Ejemplares similares