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http://dx.doi.org/10.6111/JKCGCT.2019.29.3.115

Characteristics of micronized blue ceramic pigments using electric arc furnace dust  

Kim, Hye-Jin (Ceramic Ware Technology Center, Korea Institute of Ceramic Engineering and Technology)
Han, Kyu-Sung (Ceramic Ware Technology Center, Korea Institute of Ceramic Engineering and Technology)
Hwang, Kwang-Taek (Ceramic Ware Technology Center, Korea Institute of Ceramic Engineering and Technology)
Nahm, Sahn (Department of Material Science and Engineering, Korea University)
Kim, Jin-Ho (Ceramic Ware Technology Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.29, no.3, 2019 , pp. 115-122 More about this Journal
Abstract
Electric arc furnace dust (EAFD), which is a dust waste generated in the steel manufacturing process, contains heavy metals. Recently, researches of recycling a large amount of valuable metals such as zinc and iron in EAFD are being actively carried out. In this study, EAFD is used as a substitute for cobalt in blue ceramic pigments without any pretreatment. Then, the synthesized blue ceramic pigment using EAFD was micronized and formulated as a ceramic ink for inkjet printer. The particle size distribution, crystal structure and color characteristics during the micronization process were investigated for the development of ceramic ink. $Co_{0.75}Zn(EAFD)_{0.25}Al_2O_4$ ceramic pigments showed excellent blue coloric properties and monomodal distribution through micronization process. The average particle size of $Co_{0.75}Zn(EAFD)_{0.25}Al_2O_4$ ceramic pigments after 3 hours of milling was $0.271{\mu}m$, which is smaller than $0.303{\mu}m$, which is the average particle size of $CoAl_2O_4$ ceramic pigments without EAFD after 5 hours of milling. Especially, it was confirmed that $Co_{0.75}Zn(EAFD)_{0.25}Al_2O_4$ ceramic pigments showed a color difference (${\Delta}E{^*}_{ab}$) value of 5.67, which smaller than ${\Delta}E{^*}_{ab}$ value of $CoAl_2O_4$ during micronization. These results show that EAFD can be used as a raw material for a blue ceramic pigment by replacing expensive cobalt without any pretreatment.
Keywords
Electric arc furnace dust; Ceramic pigments; Micronization; Coloring property; Raw material;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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