Title: Influence of Al_2O_3 on Glass-ceramics Property from Reduced Slag after Iron Melt-reduction
Abstract: To prepare the glass-ceramics with high-additional-value using plenty of steel slag、modifier A and modifier B etc.solid waste containingiron,the influence of Al2O3 on glass-ceramics property from reduced slag after iron melt-reduction by means of DTA,XRD,SEM and so on.The results show that the main crystalphase of glass-ceramicst is wollastonite when the mass fraction of Al2O3 is 3%-6%,what's more,the crystal of glass-ceramicst is granular and crystal structure is loose,in which exists small holes;with the increase of Al2O3 content,the main crystalphase transforms from the wollastonite into the akermanite and gehlenite.When the mass fraction of Al2O3 reach as high as 15%,the parameter k(Tp) of crystallization kinetics is maximum and the crystallization ability is the strongest as well,furthermore,the size of microcrystal glass grain is 1-2 μm or so and the phase structure of it is co MPact,meanwhile,the bending strength、microhardness and compressive strength are respectively 49.85 MPa、3.60 Gpa and 181.47 MPa,which completely conform to the national standards of glass-ceramics which are made use of architectural decoration.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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