Browse > Article

Physical properties of EAF dust-loaded glass-ceramics  

Kang, Seung-Gu (Department of Materials Engineering, Kyonggi University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.18, no.6, 2008 , pp. 242-247 More about this Journal
Abstract
The glass and glass-ceramics containing EAF dust $30{\sim}70\;wt%$ were fabricated and the dependance of physical properties upon crystal phases and microstructure formed was studied. The crystallization behavior of glass and glass-ceramics containing various contents of EAF dust composing of mainly $Fe_2O_3$ and ZnO was analyzed by crystal identification and microstructure observation. The glass specimen with EAF dust 30 wt% showed a typical amorphous pattern in XRD results and the specimen with above 30 wt% EAF dust had some un-dissolved crystals which was originated from EAF dust. The all glass-ceramics had franklinite, willemite and augite crystal phases. The density of glass-ceramics was higher than that of same composition glass, and it increased with EAF dust contents. In addition, the thermal and mechanical properties of glass-ceramics were always higher than those of glasses. In other words, the thermal expansion coefficient of glass increased with EAF dust contents while it decreased for the glass-ceramics. The vickers hardness for the glass and glass-ceramics increased with EAF dust content, the glass-ceramics always being higher those of glass of same composition.
Keywords
EAF dust; Glass-ceramics; Franklinite; Willemite; Thermal expansion; Vickers hardness;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Y.J. Kwon, Y.T. Kim, K.G. Lee, Y.J. Kim, S.G. Kang, and J.H. Kim, "Stabilization behavior of heavy metals in the EAF dust-clay body mixtures at various sintering conditions", J. of the Kor. Ceram. Soc. 39 (2002) 728   DOI
2 Y. Masauki, "Glasses", Translated to Korean by W.H. Kang, et al., Chungmoongak, Korea (2002) 34
3 J.Y. Lee, S.G. Kang, Y.T. Kim, K.G. Lee and J.H. Kim, "Characterization of colloid interface properties between clay and EAF dust", J. Kor. Cryst. Growth. and Tech. 16[2] (2006) 76   과학기술학회마을
4 P. Kavouras, Th. A. Ioannidis, Th. Kehagias, I. Tsilika, K. Chrissafis, S. Kokkou, A. Zouboulis, and Th. Karakostas, "EAFD-loaded vitreous and glass-ceramic materials", J. Eur. Ceram. Soc. 27 (2007) 2317   DOI   ScienceOn
5 H.S. Kim and S.G. Kang, "Analysis of microstructure for glass-ceramics made of silicate glasses containing EAF dust", J. Kor. Cryst. Growth and Tech. 16[5] (2006) 227   과학기술학회마을
6 M. Pelio, A. Karamanov, P. Pisciella, S. Crisucci and D. Zonetti, "Vitrification of electric arc of furnace dusts", J. of the Waste Management 22 (2002) 945   DOI   ScienceOn
7 H.T. Eun, Y.T. Kim, K.G. Lee, Y.J. Kim, S.G. Kang and J.H. Kim, "Properties of heavy metal adsorption of clay minerals", J. of the Kor. Ceram. Soc. 39 (2002) 663   과학기술학회마을   DOI