Effect of sintering temperature on the microstructure and properties of foamed glass-ceramics prepared from high-titanium blast furnace slag and waste glass
来源期刊：International Journal of Minerals Metallurgy and Materials2017年第8期
论文作者：Chang-hong Chen Ke-qin Feng Yu Zhou Hong-ling Zhou
文章页码：931 - 936
摘 要：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℃） 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℃. 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℃.
Chang-hong Chen，Ke-qin Feng，Yu Zhou，Hong-ling Zhou
School of Manufacturing Science and Engineering, Sichuan University
摘 要：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℃） 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℃. 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℃.
关键词：
