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Volume 25 Issue 6
Jun.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(6): 689-695
Hong-ling Zhou, Ke-qin Feng, Chang-hong Chen,  and Zi-di Yan, Influence of CeO2 addition on the preparation of foamed glass-ceramics from high-titanium blast furnace slag, Int. J. Miner. Metall. Mater., 25(2018), No. 6, pp. 689-695. https://doi.org/10.1007/s12613-018-1616-5
Cite this article as:
Hong-ling Zhou, Ke-qin Feng, Chang-hong Chen,  and Zi-di Yan, Influence of CeO2 addition on the preparation of foamed glass-ceramics from high-titanium blast furnace slag, Int. J. Miner. Metall. Mater., 25(2018), No. 6, pp. 689-695. https://doi.org/10.1007/s12613-018-1616-5
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研究论文

Influence of CeO2 addition on the preparation of foamed glass-ceramics from high-titanium blast furnace slag

  • School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China

  • 通讯作者:

    Ke-qin Feng    E-mail: kqfeng@scu.edu.cn

  • Foamed glass-ceramics doped with cerium oxide (CeO2) were successfully prepared from high-titanium blast furnace slag by one-step sintering. The influence of CeO2 addition (1.5wt%–3.5wt%) on the crystalline phases, microstructure, and properties of foamed glass-ceramics was studied. Results show that CeO2 improves the stability of the glass phase and changes the two-dimensional crystallization mechanism into three-dimensional one. XRD analysis indicates the presence of Ca(Mg, Fe)Si2O6 and Ca(Ti, Mg, Al)(Si, Al)2O6 in all sintered samples. Added with CeO2, TiCeO4 precipitates, and crystallinity increases, leading to increased thickness of pore walls and uniform pores. The comprehensive properties of foamed glass-ceramics are better than that of samples without CeO2. In particular, the sample added with a suitable amount of CeO2 (2.5wt%) exhibits bulk density that is similar to and compressive strength (14.9 MPa) that is more than twice of foamed glass-ceramics without CeO2.
    • Research Article

    Influence of CeO2 addition on the preparation of foamed glass-ceramics from high-titanium blast furnace slag

    + Author Affiliations
      Abstract
    • Foamed glass-ceramics doped with cerium oxide (CeO2) were successfully prepared from high-titanium blast furnace slag by one-step sintering. The influence of CeO2 addition (1.5wt%–3.5wt%) on the crystalline phases, microstructure, and properties of foamed glass-ceramics was studied. Results show that CeO2 improves the stability of the glass phase and changes the two-dimensional crystallization mechanism into three-dimensional one. XRD analysis indicates the presence of Ca(Mg, Fe)Si2O6 and Ca(Ti, Mg, Al)(Si, Al)2O6 in all sintered samples. Added with CeO2, TiCeO4 precipitates, and crystallinity increases, leading to increased thickness of pore walls and uniform pores. The comprehensive properties of foamed glass-ceramics are better than that of samples without CeO2. In particular, the sample added with a suitable amount of CeO2 (2.5wt%) exhibits bulk density that is similar to and compressive strength (14.9 MPa) that is more than twice of foamed glass-ceramics without CeO2.
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