The Behavior and Effect of Rare Earth CeO2 on In-Situ TiC/Al Composite.

Autor:	Youming Liu, Wenyi Li, Xun Cai, Liuhe Li, Qiulong Chen, Bofan Xu
Předmět:	RARE earth metals METALLIC composites MECHANICS (Physics) METALLURGY MATERIALS science
Zdroj:	Metallurgical & Materials Transactions. Part A; Aug2004, Vol. 35 Issue 8, p2511-2515, 5p, 2 Black and White Photographs, 1 Diagram, 2 Charts, 4 Graphs
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu Full text from SpringerLink