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http://dx.doi.org/10.3365/KJMM.2011.49.12.1001

Low-temperature Synthesis of (TiC+Al2O3) Reinforced Al Matrix Composite Based on Self-combustion Reaction  

Lee, Jung-Moo (Structural Materials Division, Korea Institute of Materials Science)
Kim, Su-Hyeon (Structural Materials Division, Korea Institute of Materials Science)
Cho, Young-Hee (Structural Materials Division, Korea Institute of Materials Science)
Kim, Je-Woo (Department of Material Science and Engineering, Korea University)
Lee, Jae-Chul (Department of Material Science and Engineering, Korea University)
Publication Information
Korean Journal of Metals and Materials / v.49, no.12, 2011 , pp. 1001-1004 More about this Journal
Abstract
The formation of TiC and $Al_2O_3$ particles based on the self-combustion reaction of the $Al-TiO_2-C-CuO$ system in an Al alloy melt was investigated. With an adequate amount of CuO in the system, a spontaneous reaction occurred within the Al alloy melt at $850^{\circ}C$ and thereafter was self-maintained, producing an Al matrix composite reinforced with thermodynamically stable TiC and $Al_2O_3$ particles. TiC and $Al_2O_3$ particles contributed to a considerable increase in the strength and stiffness, demonstrating the feasibility of this method as a practical application for structural parts.
Keywords
metal matrix composite; self-combustion reaction; in-situ reaction synthesis;
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