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J. Korean Ceram. Soc. > Volume 51(3); 2014 > Article
Journal of the Korean Ceramic Society 2014;51(3): 184.
doi: https://doi.org/10.4191/kcers.2014.51.3.184
제강분진을 활용한 고온발색 청색무기안료 합성 및 특성에 관한 연구
손보람, 김진호, 한규성, 조우석, 황광택
한국세라믹기술원 이천분원
Synthesis and Characteristics of Blue Ceramic Pigments Using Electric Arc Furnace Dust
Bo-Ram Son, Jin-Ho Kim, Kyu-Sung Han, Woo-Suk Cho, Kwang-Taek Hwang
Icheon Branch, Korea Institute of Ceramic Engineering & Technology (KICET)
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.
Key words: Blue ceramic pigment, Electric arc furnace dust, Spinel structure, Solid state reaction method
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