Microstructure and Properties of Zircon-Added Carbon Refractories for Blast Furnace
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Microstructure and Properties of Zircon-Added Carbon Refractories for Blast Furnace TIANBIN ZHU, YAWEI LI, SHAOBAI SANG, XILAI CHEN, LEI ZHAO, YUANBING LI, and SHUJING LI Microstructure and properties of zircon-added carbon refractory specimens for blast furnace (BF) were investigated with the aid of X-ray diffraction (XRD), a scanning electron microscope (SEM), energy-dispersive X-ray, mercury porosimetry, and a laser thermal conductivity (TC) meter. Additives could influence the matrix structures and improve the properties of specimens. With the increase of zircon powder content, the amount of SiC whiskers formed increased and their aspect ratio became larger, and the SiC whiskers tended to be distributed homogeneously. Zircon powder additions decreased the mean pore diameter and increased
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