Sintering lignite fly and bottom ashes via two-step versus conventional process
Lignite combustion class-C (highly-calcareous) fly ash and bottom ash were sintered employing two-step sintering (TSS) and compared to conventionally sintered ones. TSS sintering is a new promising approach mainly used to obtain effectively densified ceramics. This alternative process is ge...
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| Format: | Article |
| Language: | English |
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International Institute for the Science of Sintering, Beograd
2016-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2016/0350-820X1603363K.pdf |
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| author | Karayannis Vayos G. Moutsatsou Angeliki K. Katsika Eleni L. |
| author_facet | Karayannis Vayos G. Moutsatsou Angeliki K. Katsika Eleni L. |
| author_sort | Karayannis Vayos G. |
| collection | DOAJ |
| description | Lignite combustion class-C (highly-calcareous) fly ash and bottom ash were
sintered employing two-step sintering (TSS) and compared to conventionally
sintered ones. TSS sintering is a new promising approach mainly used to
obtain effectively densified ceramics. This alternative process is generally
characterized by the absence of the final stage of grain growth occurring
upon conventional sintering and by the development of nanograin
microstructure. The ceramic microstructures successfully obtained in the
present research were characterized by means of X-ray diffraction and
scanning electron microscopy coupled with energy dispersive X-ray analysis as
well as by density measurements. The effectiveness of the solidification
process was thoroughly studied, and the specific microstructural features
attained are compared between each other and evaluated in relation to the
sintering method applied. The results show that the valorization of lignite
calcareous ashes into ceramic materials is feasible through different
sintering techniques. |
| first_indexed | 2024-04-13T08:48:16Z |
| format | Article |
| id | doaj.art-ead89b63f0da4245b58bfab86a4266d2 |
| institution | Directory Open Access Journal |
| issn | 0350-820X 1820-7413 |
| language | English |
| last_indexed | 2024-04-13T08:48:16Z |
| publishDate | 2016-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj.art-ead89b63f0da4245b58bfab86a4266d22022-12-22T02:53:37ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132016-01-0148336337010.2298/SOS1603363K0350-820X1603363KSintering lignite fly and bottom ashes via two-step versus conventional processKarayannis Vayos G.0Moutsatsou Angeliki K.1Katsika Eleni L.2Technological Education Institute of Western Macedonia, Department of Environmental Engineering, Kila, Kozani, GreeceNational Technical University of Athens (NTUA), School of Chemical Engineering, Zografou Campus, Athens, GreeceNational Technical University of Athens (NTUA), School of Chemical Engineering, Zografou Campus, Athens, GreeceLignite combustion class-C (highly-calcareous) fly ash and bottom ash were sintered employing two-step sintering (TSS) and compared to conventionally sintered ones. TSS sintering is a new promising approach mainly used to obtain effectively densified ceramics. This alternative process is generally characterized by the absence of the final stage of grain growth occurring upon conventional sintering and by the development of nanograin microstructure. The ceramic microstructures successfully obtained in the present research were characterized by means of X-ray diffraction and scanning electron microscopy coupled with energy dispersive X-ray analysis as well as by density measurements. The effectiveness of the solidification process was thoroughly studied, and the specific microstructural features attained are compared between each other and evaluated in relation to the sintering method applied. The results show that the valorization of lignite calcareous ashes into ceramic materials is feasible through different sintering techniques.http://www.doiserbia.nb.rs/img/doi/0350-820X/2016/0350-820X1603363K.pdflignite fly ashbottom ashcalcareoustwo-step sintering (TSS)ceramics |
| spellingShingle | Karayannis Vayos G. Moutsatsou Angeliki K. Katsika Eleni L. Sintering lignite fly and bottom ashes via two-step versus conventional process Science of Sintering lignite fly ash bottom ash calcareous two-step sintering (TSS) ceramics |
| title | Sintering lignite fly and bottom ashes via two-step versus conventional process |
| title_full | Sintering lignite fly and bottom ashes via two-step versus conventional process |
| title_fullStr | Sintering lignite fly and bottom ashes via two-step versus conventional process |
| title_full_unstemmed | Sintering lignite fly and bottom ashes via two-step versus conventional process |
| title_short | Sintering lignite fly and bottom ashes via two-step versus conventional process |
| title_sort | sintering lignite fly and bottom ashes via two step versus conventional process |
| topic | lignite fly ash bottom ash calcareous two-step sintering (TSS) ceramics |
| url | http://www.doiserbia.nb.rs/img/doi/0350-820X/2016/0350-820X1603363K.pdf |
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