Abstract
Foamed glass-ceramics were prepared via a single-step sintering method using high-titanium blast furnace slag and waste glass as the main raw materials The influence of sintering temperature (900–1060°C) on the microstructure and properties of foamed glass-ceramics was studied. The results show that the crystal shape changed from grainy to rod-shaped and finally turned to multiple shapes as the sintering temperature was increased from 900 to 1060°C. With increasing sintering temperature, the average pore size of the foamed glass-ceramics increased and subsequently decreased. By contrast, the compressive strength and the bulk density decreased and subsequently increased. An excessively high temperature, however, induced the coalescence of pores and decreased the compressive strength. The optimal properties, including the highest compressive strength (16.64 MPa) among the investigated samples and a relatively low bulk density (0.83 g/cm3), were attained in the case of the foamed glass-ceramics sintered at 1000°C.
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This work was financially supported by the Science and Technology Support Program of Sichuan Province (No. 2014GZ0011) and the Industry Promotion Project of Panzhihua City, China (No. 2012CY-C-2).
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Chen, Ch., Feng, Kq., Zhou, Y. et al. Effect of sintering temperature on the microstructure and properties of foamed glass-ceramics prepared from high-titanium blast furnace slag and waste glass. Int J Miner Metall Mater 24, 931–936 (2017). https://doi.org/10.1007/s12613-017-1480-8
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DOI: https://doi.org/10.1007/s12613-017-1480-8