Preparation of Steel Slag Ceramics with Different MgO/Al2O3 Ratios
| Autor: | Xue-dong Zhang, Yanbing Zong, Qin Shuchen, Zhou Qifan, San-ping Liu, Zheng Chaozhen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Absorption of water 02 engineering and technology engineering.material steel slag ceramics Talc Anorthite lcsh:Technology 01 natural sciences lcsh:Chemistry Flexural strength 0103 physical sciences medicine General Materials Science Ceramic Fourier transform infrared spectroscopy lcsh:QH301-705.5 Instrumentation Quartz 010302 applied physics Fluid Flow and Transfer Processes lcsh:T Process Chemistry and Technology Metallurgy General Engineering 021001 nanoscience & nanotechnology Microstructure lcsh:QC1-999 Computer Science Applications lcsh:Biology (General) lcsh:QD1-999 crystalline phase lcsh:TA1-2040 visual_art microstructures viscosity visual_art.visual_art_medium engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:Physics medicine.drug MgO/Al2O3 ratio |
| Zdroj: | Applied Sciences Volume 9 Issue 22 Applied Sciences, Vol 9, Iss 22, p 4741 (2019) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app9224741 |
| Popis: | Steel slag, clay, quartz, feldspar, and talc were mixed to prepare steel slag ceramics. Crystalline phase transitions, microstructures, and the main physical-mechanical properties (water absorption, linear shrinkage, and flexural strength) of steel slag ceramics for various MgO/Al2O3 ratios were investigated by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mechanical testing. The results indicated the significant effect of the MgO/Al2O3 ratio on these properties. A decrease in the MgO/Al2O3 ratio resulted in a major crystalline phase transformation from quartz and pyroxene phases to quartz and anorthite phases. High MgO content facilitated production of pyroxene phases. High Al2O3 content favored production of anorthite phases. The water absorption of all the samples (below 0.5%) met the Chinese national standard requirements. Samples with an MgO/Al2O3 ratio of 0.6 exhibited excellent flexural strength, reaching 62.20 MPa. FactSage software was used to predict batch viscosity, which increased with decreasing MgO/Al2O3 ratios. |
| Databáze: | OpenAIRE |
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