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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Preparation and application of ZrC-coated flake graphite for Al2O3-C refractories
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Preparation and application of ZrC-coated flake graphite for Al2O3-C refractories

机译：ZRC涂层薄片石墨的制备及应用Al2O3-C耐火材料

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In the study, ZrC-coated flake graphite was prepared by molten salt synthesis and added to the Al2O3-C refractory. The effects of the molar ratio of Zr/C and the graphite particle size on ZrC-coated flake graphite were investigated. Moreover, the oxidation resistance of the prepared ZrC-coated flake graphite was evaluated. Finally, the effect of ZrC-coated flake graphite on the properties of the Al2O3-C refractory was investigated. The results indicated that Zr and C reacted completely as the Zr/C molar ratio decreased. Furthermore, with a decrease in the graphite particle size, the reaction between Zr and C was more complete and the size of the peeling layer decreased. When compared with natural flake graphite, ZrC-coated flake graphite exhibited better oxidation resistance. The Al2O3-C refractory with 3 wt% ZrC-coated flake graphite exhibited optimal oxidation resistance and that with 1 wt% ZrC-coated flake graphite exhibited optimal slag corrosion resistance ability. (C) 2019 Elsevier B.V. All rights reserved.
机译：在该研究中，通过熔融合成制备ZrC涂覆的片状石墨并加入到Al 2 O 3-C难治度中。研究了Zr / C的摩尔比和石墨粒度对ZrC涂覆的剥落石墨的影响。另外，评价制备的ZrC涂层薄片石墨的抗氧化性。最后，研究了ZRC涂层剥落石墨对Al 2 O 3-C耐火性质的影响。结果表明，随着Zr / C摩尔比降低，Zr和C完全反应。此外，随着石墨粒径的降低，Zr和C之间的反应更加完整，剥离层的尺寸降低。与天然薄片石墨相比，ZrC涂覆的剥落石墨表现出更好的抗氧化性。具有3wt％ZrC涂覆片石墨的Al 2 O 3-C耐火表现出最佳的抗氧化性，并且用1wt％ZrC涂覆的剥落石墨表现出最佳的浆料耐腐蚀能力。 （c）2019 Elsevier B.v.保留所有权利。

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