This work was aimed to study the effects of steel scoria and slag on structure and properties of low-temperature sintered building ceramics, with the main raw materials to prefabricated mud, shale, steel scoria or slag, while the fluxs are potassium feldspar and talcum. While testing flexural strength, water absorption, bulk density and line shrinkage, the building ceramics were also characterized by using XRD, SEM-EDS, XRF and other detection methods. When the samples were fired at 1120 ℃ for 60 min and the contents of steel scoria and slag were 10 wt.% and 8 wt.%, the comprehensive performance of the sample was the maximized. In this case, the flexural strengths are 89.9 MPa and 91.7 MPa, while water absorption rates are 0.28% and 0.19%.
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With basic titanium glaze, suspension agent, and K2CO3 additives as the main raw materials, the effects of mullite whiskers and nanometer alumina on the properties and microstructure of enamel glaze were studied. While the properties, such as Vickers hardness and glossiness, were measured, microstructure of the enamel glaze was characterized by using XRD, XRF, SEM-EDS, and so on. After firing at 820 ℃ for 30 min for heat preservation, with 16 wt.% mullite whisker and nanometer alumina, the Vickers hardnesses of the samples are 6.12 GPa and 5.64 GPa, respectively, while the glossiness of the sample decreases gradually with increasing content of the dopants.
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