Comparison of microwave and conventional processing stainless steelmaking dust to prepare black ceramic pigments

Zhiqiao Li; Xiang Zhang; Guojun Ma; Rodrigue Armel Muvunyi; Dingli Zheng

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자료유형: 학술저널

저자정보: Zhiqiao Li (Wuhan University of Science and Technology) Xiang Zhang (Wuhan University of Science and Technology) Guojun Ma (Wuhan University of Science and Technology) Rodrigue Armel Muvunyi (Wuhan University of Science and Technology) Dingli Zheng (Wuhan University of Science and Technology)

저널정보: 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제23권 제3호

발행연도: 2022.6

수록면: 344 - 349 (6page)

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Using stainless steelmaking dust (SSD) for the preparation of black ceramic pigments can not only reduce pollution, but alsohave more considerable economic, environmental and social value. Black ceramic pigments with the mixed spinel-type wereprepared from SSD by microwave and conventional processing, respectively. The properties of black ceramic pigments werestudied by X-ray diffraction, Fourier transform infrared spectroscopy, Scanning electron microscope and Colorimeter. Theresults show that the main phase compositions of pigment sample synthesised by microwave processing are Fe3O4, FeCr2O4,NiFe2O4 and NiMn0.5Cr1.5O4. Compared with conventional processing, microwave processing can significantly reduce therequired temperature of spinel formation reaction and promote the reaction. Moreover, the pigment sample prepared bymicrowave processing (PSM) is blacker and has a lower band gap than that prepared by conventional processing (PSC). Themicrostructure of PSM is regular polyhedral, and the crystal size of it is significantly larger than the PSC. In addition, thepreparation process of PSM is more efficient and has a better application prospect compared with PSC.

#microwave processing #stainless steelmaking dust #black ceramic pigments #transition metal element #spinels.

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