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Synthesis and Characteristics of Blue Ceramic Pigments Using Electric Arc Furnace Dust

제강분진을 활용한 고온발색 청색무기안료 합성 및 특성에 관한 연구

  • Son, Bo-Ram (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Cho, Woo-Suk (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)) ;
  • Hwang, Kwang-Taek (Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET))
  • 손보람 (한국세라믹기술원 이천분원) ;
  • 김진호 (한국세라믹기술원 이천분원) ;
  • 한규성 (한국세라믹기술원 이천분원) ;
  • 조우석 (한국세라믹기술원 이천분원) ;
  • 황광택 (한국세라믹기술원 이천분원)
  • Received : 2014.03.14
  • Accepted : 2014.05.02
  • Published : 2014.05.31

Abstract

Electric arc furnace dust (EAFD) is a solid waste generated by the steel-scrap recycling process. It mainly consists of zinc oxides (ZnO), alumina ($Al_2O_3$), iron oxides ($Fe_2O_3$), and silica ($SiO_2$). Here we report the preparation and characterization of blue ceramic pigments using EAFD powder as a starting material. $(Zn(EAFD),Co)Al_2O_4$ blue ceramic pigment was prepared by the solid-state reaction method. The color characteristics of the pigment obtained were compared with those of pure $CoAl_2O_4$. The new pigment was characterized using XRD, CIE-$L^*a^*b^*$ color-measurements, SEM, and EDX. The XRD analysis revealed that the $(Zn(EAFD),Co)Al_2O_4$ pigment was composed of mainly the spinel phase of $(Zn,Co)Al_2O_4$. The $Zn(EAFD)_{0.25}Co_{0.75}Al_2O_4$ pigments showed a vivid blue color with a $b^*$ value of -28.64 and a good glaze stability with a transparent glaze.

Keywords

References

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