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- W3141580811 abstract "Al2O3-SiC-C castables for iron trough with fused magnesia powder (0, 3%, 6%, 9% and 12%) were prepared with brown fused corundum particles (5-3 mm, 3-1 mm, ≤1 mm), white fused corundum powder (≤0.088 mm), SiC particle (≤1 mm) and powder (≤0.088 mm), fused magnesia powder (≤0.088 mm), reactive α-Al2O3 micropowder, ultrafine SiO2, Si powder and sphere pitch as main starting materials and calcium aluminate cement as binder. The specimens were fired at 1 100 ℃ and 1 450 ℃ for 3 h after vibrating moulding, curing, demoulding and drying at 110 ℃ for 24 h. Bulk density, apparent porosity, linear change rate, modulus of rupture, resistance to blast furnace slag, oxidation resistance, phase composition and microstructure of the specimens were analyzed. The results show that: (1) With fused magnesia addition increasing, apparent porosity increases, while bulk density, modulus of rupture and oxidation resistance decline, slag resistance varies slightly; (2) The main crystal phases in the specimens fired at 1 450 ℃ for 3 h are 3C-SiC, 6H-SiC, corundum, periclase, reaction-synthesized spinel and mullite; the quantity of the formed spinel and mullite increases with the increase of fused magnesite addition; (3) Along the corroded side, spinel layer with about 80 μm thickness forms at the corundum particles boundary." @default.
- W3141580811 created "2021-04-13" @default.
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- W3141580811 date "2008-01-01" @default.
- W3141580811 modified "2023-09-27" @default.
- W3141580811 title "Effects of Electro-fused Magnesia on Properties of Al_2O_3-SiC-C Castable" @default.
- W3141580811 hasPublicationYear "2008" @default.
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