A post‐mortem analysis of the used gel‐bonded Al 2 O 3 –MgAl 2 O 4 castables in an industrial steelmaking ladle
Source abstract
Abstract
Abstract In this work, a cement‐free alumina‐spinel (Al 2 O 3 –MgAl 2 O 4 ) castables with a new aluminum–magnesium gel binder were developed to line the Ruhrstahl Heraeus refining ladle, chemical attacks, and degradation mechanisms of the used alumina‐spinel castables after industrial trials were investigated. The results indicated that a reaction product layer of (Mg, Fe)Al 2 O 4 was observed between the slag layer and penetration layer (PL), which was mainly derived from the reaction between MgAl 2 O 4 spinel in the refractory matrix and FeO t from slag or an oxidation of steel, and thereby prevented the further penetration of FeO t . Meanwhile, the in situ spinel could also entrap slight CaO, SiO 2 , and FeO t from the infiltrated slag to form composite spinel in the PL. Moreover, chemical corrosion/penetration and structural spalling dominated the degradation process of the refractory lining in this case. Cracks formed between the deteriorated layer and original layer because of mechanical and thermal stress, which caused spalling from the refractory's hot face.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metallurgical Processes and Thermodynamics · Advanced ceramic materials synthesis · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemical Engineering Zhejiang University of Technology Hangzhou China
State Key Laboratory of Green Chemistry Synthesis Technology Zhejiang University of Technology Hangzhou China
Zhejiang Zili Holdings Co. Ltd Shaoxing Zhejiang China
The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology Wuhan China
Funding
National Natural Science Foundation of China
References (45)
Show source-provided references
1. 10.1016/j.ceramint.2015.12.00810.1016/j.ceramint.2015.12.008 ↗
2. 10.1016/j.jeurceramsoc.2012.01.00510.1016/j.jeurceramsoc.2012.01.005 ↗
3. 10.1007/s11663-011-9495-410.1007/s11663-011-9495-4 ↗
4. 10.1111/jace.1687910.1111/jace.16879 ↗
5. Improvement in the durability of alumina–spinel steel ladle castable containing spinel fine powder
6. Properties and production of Al2O3‐Spinel and Al2O3‐MgO castables for steel ladles
7. Application of alumina–magnesia castable in high temperature steel ladles
8. 10.1016/j.ceramint.2011.03.04910.1016/j.ceramint.2011.03.049 ↗
9. 10.1016/j.ceramint.2011.09.02710.1016/j.ceramint.2011.09.027 ↗
10. 10.1016/j.corsci.2018.08.02210.1016/j.corsci.2018.08.022 ↗
11. 10.1016/j.jeurceramsoc.2018.01.03110.1016/j.jeurceramsoc.2018.01.031 ↗
12. 10.1016/j.ceramint.2008.04.00210.1016/j.ceramint.2008.04.002 ↗
13. 10.2355/isijinternational.ISIJINT-2019-76810.2355/isijinternational.ISIJINT-2019-768 ↗
14. 10.1016/j.jeurceramsoc.2007.04.00710.1016/j.jeurceramsoc.2007.04.007 ↗
15. 10.1016/S0272-8842(02)00046-910.1016/S0272-8842(02)00046-9 ↗
16. 10.1016/S0955-2219(01)00509-X10.1016/S0955-2219(01)00509-X ↗
17. 10.1016/S0272-8842(02)00047-010.1016/S0272-8842(02)00047-0 ↗
18. 10.1016/j.ceramint.2010.04.00510.1016/j.ceramint.2010.04.005 ↗
19. 10.1016/S0272-8842(01)00121-310.1016/S0272-8842(01)00121-3 ↗
20. 10.1111/j.1551-2916.2008.02566.x10.1111/j.1551-2916.2008.02566.x ↗
21. 10.1016/j.jeurceramsoc.2008.05.01410.1016/j.jeurceramsoc.2008.05.014 ↗
22. 10.1016/j.jeurceramsoc.2007.01.01610.1016/j.jeurceramsoc.2007.01.016 ↗
23. 10.1016/j.jeurceramsoc.2012.11.01110.1016/j.jeurceramsoc.2012.11.011 ↗
24. 10.1016/j.jeurceramsoc.2009.03.02410.1016/j.jeurceramsoc.2009.03.024 ↗
25. 10.1016/j.jmatprotec.2009.05.01310.1016/j.jmatprotec.2009.05.013 ↗
26. 10.1016/j.ceramint.2018.10.04910.1016/j.ceramint.2018.10.049 ↗
27. 10.1016/j.jeurceramsoc.2013.11.00410.1016/j.jeurceramsoc.2013.11.004 ↗
28. 10.1016/S0955-2219(97)00182-910.1016/S0955-2219(97)00182-9 ↗
29. 10.1016/j.jeurceramsoc.2017.07.00310.1016/j.jeurceramsoc.2017.07.003 ↗
30. 10.1111/j.1151-2916.2001.tb00672.x10.1111/j.1151-2916.2001.tb00672.x ↗
31. 10.1016/j.jeurceramsoc.2004.07.00410.1016/j.jeurceramsoc.2004.07.004 ↗
32. 10.1016/j.ceramint.2011.01.02110.1016/j.ceramint.2011.01.021 ↗
33. 10.1016/j.ceramint.2021.01.22710.1016/j.ceramint.2021.01.227 ↗
34. 10.1111/j.1151-2916.1998.tb02719.x10.1111/j.1151-2916.1998.tb02719.x ↗
35. 10.1016/j.ceramint.2022.01.30010.1016/j.ceramint.2022.01.300 ↗
36. An accurate correlation between high‐temperature performance and cement content of the high‐alumina refractory castables
37. 10.1016/j.ceramint.2009.05.03110.1016/j.ceramint.2009.05.031 ↗
38. 10.1016/j.ceramint.2012.02.06610.1016/j.ceramint.2012.02.066 ↗
39. 10.1111/j.1744-7402.2008.02240.x10.1111/j.1744-7402.2008.02240.x ↗
40. 10.1016/j.ceramint.2015.08.10310.1016/j.ceramint.2015.08.103 ↗
41. 10.1111/jace.1798010.1111/jace.17980 ↗
42. 10.1016/j.ceramint.2021.08.08710.1016/j.ceramint.2021.08.087 ↗
43. 10.1016/j.ceramint.2022.02.23610.1016/j.ceramint.2022.02.236 ↗
44. 10.1016/j.ceramint.2021.11.05610.1016/j.ceramint.2021.11.056 ↗
45. 10.1016/S0955-2219(02)00170-X10.1016/S0955-2219(02)00170-X ↗