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Degradation of magnesia-chromite refractory in ZnO-containing ferrous calcium silicate slags
- Source :
- Ceramics International. 47:11276-11284
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- To assess the impact of changes in slag type on the degradation of refractory linings of secondary copper smelters, the degradation behavior of direct-bonded and fused grain magnesia–chromite refractories in ZnO-containing ferrous calcium silicate slags was studied via dynamic refractory finger and static refractory crucible tests at 1200 °C under Ar atmosphere. The effect of ZnO level in the slag and refractory type on the degradation behavior was determined. A combination of microstructural and compositional characterizations of tested refractories, and thermodynamic calculations leads to comprehensive understanding of the degradation mechanism of the refractories. Based on the degradation mechanism, conclusions can be given about the prediction of lifetime of refractory lining when the slag type changes from fayalite-based to ferrous calcium silicate-based slags for secondary copper smelting.
- Subjects :
- Materials science
chemistry.chemical_element
Crucible
02 engineering and technology
01 natural sciences
Ferrous
chemistry.chemical_compound
0103 physical sciences
Materials Chemistry
Refractory (planetary science)
010302 applied physics
Magnesium
Process Chemistry and Technology
Metallurgy
Slag
021001 nanoscience & nanotechnology
Copper
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
chemistry
visual_art
Calcium silicate
Smelting
Ceramics and Composites
visual_art.visual_art_medium
0210 nano-technology
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........7637fdd61690ab732a9efd98ce4f6158