Physicochemical possibilities are considered for entry of carbon into the structure of fuzed MgO during crystallization from a melt. It is established that fuzed periclase contains carbon, which during periclase grinding is concentrated at the surface of MgO crystals. With fine milling in a vibration mill carbon concentration is higher at the surface of MgO than with milling in a jet mill, and comprises 41.40 and 35.42 wt.% respectively. Melting MgO in an experimental electric arc furnace confirms the possibility of preparing periclase saturated with carbon.
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K. G. Zemlyanoi, “Effect of grinding methods on sintering materials in the system Al2O3–MgO–SiO2–CaO–Cr2O3,” Diss. Cand. Tech. Sci., Ekaterinburg (2013).
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Translated from Novye Ogneupory, No. 11, pp. 26 – 30, November, 2014.
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Kashcheev, I.D., Zemlyanoi, K.G. Carbon Diffusion within Periclase During Melting. Refract Ind Ceram 55, 511–515 (2015). https://doi.org/10.1007/s11148-015-9755-y
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DOI: https://doi.org/10.1007/s11148-015-9755-y