| Synthesis of ZrO2-SiC composite powder and effect of its addition on properties of Al2O3-C refractories |
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| 作者姓名： | 马北越 于景坤 |
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| 作者单位： | School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
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| 基金项目： | Project（50274021） supported by the National Natural Science Foundation of China and Baoshan Iron and Steel Co. Ltd. |
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| 摘 要： |
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| 关 键 词： | ZrO2-SiC复合材料 碳高温还原 压碎强度 耐火材料 |
| 收稿时间： | 23 January 2007 |
| 修稿时间： | 2007-01-232007-05-18 |
Synthesis of ZrO2-SiC composite powder and effect of its addition on properties of Al2O3-C refractories |
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| MA Bei-yue,YU Jing-kun.Synthesis of ZrO2-SiC composite powder and effect of its addition on properties of Al2O3-C refractories[J].Transactions of Nonferrous Metals Society of China,2007,17(5):996-1000. |
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| Authors: | MA Bei-yue YU Jing-kun |
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| Affiliation: | School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
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| Abstract: | ZrO2-SiC composite powder was synthesized by carbothermal reduction of zircon in argon atmosphere, and it was used as the additive to prepare Al2O3-C refractories. The effects of heating temperature on the synthesis process and the addition of the synthesized composite powder on the properties of the Al2O3-C refractories were investigated. The results show that the synthesized composite powder can be easily obtained by heating the mixture of zircon and carbon black at 1 873 K for 4 h in argon atmosphere, and the relative contents of ZrO2 and SiC in sample reach about 83.7% and 16.3%, respectively. The bulk density, crushing strength and thermal shock resistance of the Al2O3-C refractories can be improved obviously by the addition of the synthesized ZrO2-SiC composite powder. |
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| Keywords: | ZrO2-SiC composite powder carbothermal reduction crushing strength thermal shock resistance Al2O3-C refractories |
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