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...

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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
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author Tang, Hai
Li, Chunxue
Gao, Jianying
Touzo, Bruno
Liu, Chunfeng
Yuan, Wenjie
author_facet Tang, Hai
Li, Chunxue
Gao, Jianying
Touzo, Bruno
Liu, Chunfeng
Yuan, Wenjie
author_sort Tang, Hai
collection PubMed
description 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.
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spelling pubmed-81998742021-06-14 Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates Tang, Hai Li, Chunxue Gao, Jianying Touzo, Bruno Liu, Chunfeng Yuan, Wenjie Materials (Basel) Article 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. MDPI 2021-06-03 /pmc/articles/PMC8199874/ /pubmed/34205054 http://dx.doi.org/10.3390/ma14113050 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tang, Hai
Li, Chunxue
Gao, Jianying
Touzo, Bruno
Liu, Chunfeng
Yuan, Wenjie
Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates
title Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates
title_full Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates
title_fullStr Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates
title_full_unstemmed Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates
title_short Optimization of Properties for Alumina-Spinel Refractory Castables by CMA (CaO-MgO-Al(2)O(3)) Aggregates
title_sort optimization of properties for alumina-spinel refractory castables by cma (cao-mgo-al(2)o(3)) aggregates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8199874/
https://www.ncbi.nlm.nih.gov/pubmed/34205054
http://dx.doi.org/10.3390/ma14113050
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