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- W3147167376 abstract "Three kinds of composite alumina refractories were prepared with tabular alumina( 3- 1 and 1- 0 mm) as aggregates, tabular alumina powder, α-Al2O3 micropowder,and Si powder as matrix,adding 3 mass%hexagonal boron nitride( h-BN), 3 mass% flake graphite and 10 mass% flake graphite, respectively.Cold physical properties,hot modulus of rupture,oxidation resistance,thermal shock resistance and slag corrosion resistance of the specimens were compared. The results show that:( 1) physical properties and hot modulus of rupture of Al2O3- h-BN refractories are slightly different from those of low carbon Al2O3- C refractories,but better than those of traditional Al2O3- C refractories with 10 mass% graphite;( 2) Al2O3- h-BN refractories have better thermal shock resistance and oxidation resistance than the carbon containing refractories,while similar slag resistance with low carbon Al2O3- C refractories;( 3) h-BN can replace flake graphite as a starting material for the preparation of composite alumina refractories,considering the overall properties of the material." @default.
- W3147167376 created "2021-04-13" @default.
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- W3147167376 date "2014-01-01" @default.
- W3147167376 modified "2023-09-25" @default.
- W3147167376 title "Replacement of Flake Graphite in Aluminacarbon Refractories by Hexagonal Boron Nitride" @default.
- W3147167376 hasPublicationYear "2014" @default.
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