Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics
The development of value-added ceramic materials deriving only from industrial by-products is particularly interesting from technological, economic, and environmental point of views. In this work, the synergistic sintering of ternary and binary mixtures of fly ash, steelmaking electric arc furnace d...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/1735268 |
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| author | V. G. Karayannis A. K. Moutsatsou A. N. Baklavaridis E. L. Katsika A. E. Domopoulou |
| author_facet | V. G. Karayannis A. K. Moutsatsou A. N. Baklavaridis E. L. Katsika A. E. Domopoulou |
| author_sort | V. G. Karayannis |
| collection | DOAJ |
| description | The development of value-added ceramic materials deriving only from industrial by-products is particularly interesting from technological, economic, and environmental point of views. In this work, the synergistic sintering of ternary and binary mixtures of fly ash, steelmaking electric arc furnace dust, and ladle furnace slag for the synthesis of compacted ceramics is reported. The sintered specimens’ microstructure and mineralogical composition were characterized by SEM-EDS and XRD, respectively. Moreover, the shrinkage, apparent density, water absorption, and Vickers microhardness (HV) were investigated at different sintering temperatures and raw material compositions. The characterization of the sintered compacts revealed the successful consolidation of the ceramic microstructures. According to the experimental findings, the ceramics obtained from fly ash/steel dust mixtures exhibited enhanced properties compared to the other mixtures tested. Moreover, the processing temperature affected the final properties of the produced ceramics. Specifically, a 407% HV increase for EAFD and a 2221% increase for the FA-EAFD mixture were recorded, by increasing the sintering temperature from 1050 to 1150°C. Likewise, a 972% shrinkage increase for EAFD and a 577% shrinkage increase for the FA-EAFD mixture were recorded, by increasing the sintering temperature from 1050 to 1150°C. The research results aim at shedding more light on the development of sustainable sintered ceramics from secondary industrial resources towards circular economy. |
| format | Article |
| id | doaj-art-a292777a83c3466e82a46e71e8faecaf |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
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| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a292777a83c3466e82a46e71e8faecaf2025-02-03T01:20:34ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/17352681735268Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted CeramicsV. G. Karayannis0A. K. Moutsatsou1A. N. Baklavaridis2E. L. Katsika3A. E. Domopoulou4Department of Environmental Engineering, Technological Education Institute of Western Macedonia, Kila, 50100 Kozani, GreeceSchool of Chemical Engineering, National Technical University of Athens, Zografou Campus, 15773 Athens, GreeceDepartment of Environmental Engineering, Technological Education Institute of Western Macedonia, Kila, 50100 Kozani, GreeceSchool of Chemical Engineering, National Technical University of Athens, Zografou Campus, 15773 Athens, GreeceDepartment of Environmental Engineering, Technological Education Institute of Western Macedonia, Kila, 50100 Kozani, GreeceThe development of value-added ceramic materials deriving only from industrial by-products is particularly interesting from technological, economic, and environmental point of views. In this work, the synergistic sintering of ternary and binary mixtures of fly ash, steelmaking electric arc furnace dust, and ladle furnace slag for the synthesis of compacted ceramics is reported. The sintered specimens’ microstructure and mineralogical composition were characterized by SEM-EDS and XRD, respectively. Moreover, the shrinkage, apparent density, water absorption, and Vickers microhardness (HV) were investigated at different sintering temperatures and raw material compositions. The characterization of the sintered compacts revealed the successful consolidation of the ceramic microstructures. According to the experimental findings, the ceramics obtained from fly ash/steel dust mixtures exhibited enhanced properties compared to the other mixtures tested. Moreover, the processing temperature affected the final properties of the produced ceramics. Specifically, a 407% HV increase for EAFD and a 2221% increase for the FA-EAFD mixture were recorded, by increasing the sintering temperature from 1050 to 1150°C. Likewise, a 972% shrinkage increase for EAFD and a 577% shrinkage increase for the FA-EAFD mixture were recorded, by increasing the sintering temperature from 1050 to 1150°C. The research results aim at shedding more light on the development of sustainable sintered ceramics from secondary industrial resources towards circular economy.http://dx.doi.org/10.1155/2017/1735268 |
| spellingShingle | V. G. Karayannis A. K. Moutsatsou A. N. Baklavaridis E. L. Katsika A. E. Domopoulou Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics Advances in Materials Science and Engineering |
| title | Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics |
| title_full | Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics |
| title_fullStr | Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics |
| title_full_unstemmed | Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics |
| title_short | Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics |
| title_sort | synergistic sintering of lignite fly ash and steelmaking residues towards sustainable compacted ceramics |
| url | http://dx.doi.org/10.1155/2017/1735268 |
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