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Acta Metall Sin  2007, Vol. 43 Issue (10): 1059-1064     DOI:
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. . Acta Metall Sin, 2007, 43(10): 1059-1064 .

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Abstract  ZrO2-SiC composite was synthesized from zirconite and carbon black by carbothermal reduction reaction in argon atmosphere, and it was as the additive to apply in Al2O3-C refractories. The effect of the heating temperature on the synthesis and the addition of the synthesized composite on the oxidation resistance of the Al2O3-C refractories were studied. The research results showed that the synthesized composite could be easily obtained by heating the mixture of zirconite and carbon black at 1600 ℃ for 4 h in argon atmosphere, and the oxidation resistance of the Al2O3-C refractories could be obviously improved by adding the synthesized ZrO2-SiC composite.
Key words:  ZrO2-SiC composite      synthesis      carbothermal reduction      oxidization resistance      Al2O3-C refractory      
Received:  16 January 2007     
ZTFLH:  TF065.1  
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