ブラストホニススラグを原料粉末に用いたタイルの製造とその性質の研究

概要

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Blast furnace slag containing CaO, SiO_2, Al_2O_3 and MgO as main constituents was investigated as a possible raw material for tile manufacturing. Samples were made from 50 to 80 wt% slag and modified by varying amounts of SiO_2, Al_2O_3, Li_2O and TiO_2. The properties of the tile thus prepared were investigated using differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Samples heating at 860℃ and 880℃ for 2 h, respectively. The major crystalline phase in the tile was gehlenite (2CaO・Al_2O_3・SiO_2), the bending strength was from 254 to 510 kgf/cm^2, apparent porosity from 25.10 to 2.03% and the Vickers hardness was from 220 to 366 kgf/cm^2.
社団法人日本セラミックス協会の論文
1993-05-01