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- W2356928966 abstract "The SiC refractories were prepared using Si and SiC powders as raw materials via carbonization–nitridation reaction at 1 400 ℃ and 1 500 ℃,respectively.The phase composition,microstructure and micro-area element were analyzed by X-ray diffrac-tion,scanning electron microscope and energy dispersive spectroscopy.The effect of raw materials composition and preparation tem-peratures on the sintering properties,mechanical properties and thermal shock resistance of the refractories were investigated.The raw materials composition and preparation temperature were optimized.The results show that the main phases of the samples are α-SiC,β-SiC and Si2N2O.With the increase of Si powder addition,both the bulk density and flexural strength of the samples increase firstly and then decrease.The bulk density and flexural strength of the samples prepared at 1 400 ℃ are higher than that at 1 500 ℃.The samples fabricated at 1 400 ℃ with 25%(in mass) Si have better properties with density of 2.45 g/cm3,flexural strength of 96.85 MPa,and residual flexural strength of 68.78 MPa after one time thermal shock resistance test at 1 200 ℃." @default.
- W2356928966 created "2016-06-24" @default.
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- W2356928966 date "2011-01-01" @default.
- W2356928966 modified "2023-09-27" @default.
- W2356928966 title "Preparation and Properties of SiC Refractories via Carbonization-Nitridation Reaction" @default.
- W2356928966 hasPublicationYear "2011" @default.
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