Articles
  • Influence of cerium oxide (CeO2) addition on the mechanical properties of glass ceramics precursor prepared from fly ash
  • Jadambaa Temuujina,*, Uyat Bayarzula, Enkhtuul Surenjava, Kim Dae Sungb and Chu Yong Sikb
  • a Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar 51, Mongolia b Korea Institute of Ceramic and Engineering Technology, Jinju-Si, Gyeongsangnam-do, Korea
Abstract
Influence of Cerium oxide (CeO2) addition in crystallization behavior and mechanical properties of glass ceramics in the Na2OCaO- Al2O3-SiO2 system have been studied. Thermal behavior and hardness were studied by DTA-TG and indentation techniques respectively. Glass ceramic precursors were prepared by fusing fly ash, window glass and fluorite either with (0.5 wt.%) or without cerium oxide at 1500 oC for 4 hrs followed by quenching in cold water. Crystallization of the amorphous precursor occurred after 30 min at 800 oC forming plagioclase-type minerals. Hardness of the glass ceramics sintered at 1000 oC was 5.66 GPa, while in the sample with cerium oxide was 7.45 GPa.

Keywords: Fly ash, Glass waste, Rare earth oxide, Glass ceramics, Hardness.

This Article

  • 2017; 18(2): 112-115

    Published on Feb 28, 2017

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