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| Prepareration of the Al2O3-CaO-SiO2-MgO system composite by reaction sintering method |
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Received:December 14, 2015
Revised:January 27, 2016
Accepted:January 28, 2016
Published Online:October 21, 2016
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| DOI： |
| KeyWord:iron tailings; glass-ceramic; composite; technological process |
| Author | Institution |
| YIN Xue-liang |
Liao Ning Institute of Science and Technology |
| DU Cheng-wu |
Liao Ning Institute of Science and Technology |
| Li Li-ying |
Liao Ning Institute of Science and Technology |
| WANG Quan-zhou |
Steel-making Plant of Benxi Iron ＆ Steel GroupCO,LTD |
| WU Yi |
Liao Ning Institute of Science and Technology |
| TIAN Dong-xu |
Liao Ning Institute of Science and Technology |
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| Abstract: |
| In this paper, the prepareration technological process of the Al2O3-CaO-SiO2-MgO system composite from Nanfen iron tailings powder of Benxi iron and steel company by reaction sintering method was investigated. The results showed that the reasonable prepareration technology conditions are that the samples were heated at 1500℃ for 1h after the components of iron tailings were reasonably adjusted, then water quenching molten samples to obtain glass particles, and the homogeneous mixture powders were isostatically pressed to plate compacts after the glass particles were ground, and these prepared samples were heated at the nucleation temperature 750℃ for 1h and at the crystallizing temperature 860℃ for 1h in a high temperature electric furnace. As a result, the main phase compositions of Al2O3-CaO-SiO2-MgO system glass-ceramic composite that contains CaMg(SiO3)2, CaSiO3 was obtained. In addition, the properties of composite is excellent. |
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