| Preparation of Fe-M Intermetallic/TiC-M_2O_3 Ceramic Composites from Ilmenite by SHS |
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| 作者姓名： | 邹正光 |
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| 作者单位： | Key Laboratory |
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| 基金项目： | the Natural Science Fundation of Guangxi Province(No.0575104)，the Guangxi Education Department Key Fund(No.2003-22)，the Guangxi Fund of New Century Qualified Scholars(No.2002210)，the National Science Foundation(No.50672016) |
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| 摘 要： | Fe-Al intermetallic/TiC-Al_2O_3 ceramic composites were successfully prepared by self- propagating high-temperature synthesis(SHS)from natural ilmenite,aluminium and carbon as the raw materials.The effects of carbon sources,preheating time and heat treatment temperature on synthesis process and products were investigated in detail,and the reaction process of the FeTiO_3-Al-C system was also discussed. It is shown that the temperature and velocity of the combustion wave are higher when graphite is used as the carbon source,which can reflect the effect of the carbon source structure on the combustion synthesis; Prolonging the preheating time or heat treatment temperature is beneficial to the formation of the ordered intermetallics;The temperature and velocity of the combustion wave are improved,but the disordered alloys are difficult to eliminate with the preheating time prolonged.The compound powders mainly containing ordered Fe3Al intermetallic can be prepared through heat treatment at 750℃.
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Preparation of Fe-M Intermetallic/TiC-M_2O_3 Ceramic Composites from Ilmenite by SHS |
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| ZOU Zhengguang WU Yi YIN Chuanqiang LI Xiaomin.Preparation of Fe-M Intermetallic/TiC-M_2O_3 Ceramic Composites from Ilmenite by SHS[J].Journal of Wuhan University of Technology. Materials Science Edition,2007(4). |
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| Authors: | ZOU Zhengguang WU Yi YIN Chuanqiang LI Xiaomin |
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| Affiliation: | ZOU Zhengguang~1 WU Yi~1 YIN Chuanqiang~2 LI Xiaomin~1 |
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| Abstract: | |
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| Keywords: | ilmenite Fe-Al intermetallic/TiC-Al_2O_3 ceramic composites SHS I/CMC |
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