The behavior and effect of rare earth CeO2 on in-situ TiC/Al composite
Autor: | Liuhe Li, Youming Liu, Wenyi Li, Qiulong Chen, Bofan Xu, Xun Cai |
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Rok vydání: | 2004 |
Předmět: | |
Zdroj: | Metallurgical and Materials Transactions A. 35:2511-2515 |
ISSN: | 1543-1940 1073-5623 |
DOI: | 10.1007/s11661-006-0231-7 |
Popis: | Rare earth CeO2 was investigated as an additive for in-situ preparation of TiC/Al composites using XD (exothermal dispersion) + casting technology. Experiment results showed that an optimum CeO2 addition of 0.5 wt pct promotes the generation and refinement of TiC particles, prevents the formation of Al3Ti, increases the wettability between the TiC ceramic particles and the Al matrix, and improves the mechanical properties of composite. A corresponding thermodynamic model was proposed for the mechanism. |
Databáze: | OpenAIRE |
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