Metalurgija (Jan 2021)

Effect of Cr<sub>2</sub>O<sub>3</sub> on crystallization of CaO-MgO-Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>(CMAS) slag glass-ceramics

  • H. H. Yu,
  • X. Li,
  • S. M. Wang,
  • Q. Z. Liu,
  • H. Liu

Journal volume & issue
Vol. 60, no. 3-4
pp. 198 – 200

Abstract

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Using stainless steel slag and iron tailings as main raw materials, the CaO-MgO-Al2O3-SiO2 (CMAS) glass-ceramics with a solid waste utilization rate exceeding 70 % was prepared, and the effects of Cr2O3 content on the nucleation and crystallization of glass-ceramics were investigated by X-Ray diffraction (XRD). Research indicates that the main crystalline phases of CMAS are all pyroxene, and the content of Cr2O3 increases in a certain range, which promote the crystallization ability of crystals in glass. Besides, the increase of Cr2O3 content within a certain rangepromotes the crystal crystallization in glass.

Keywords