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|Title:||Development of a novel hybrid aluminum-based composite with enhanced properties|
|Authors:||Gupta, M. |
Coefficient of thermal expansion
|Citation:||Gupta, M., Lai, M.O., Lim, C.Y.H. (2006-06-06). Development of a novel hybrid aluminum-based composite with enhanced properties. Journal of Materials Processing Technology 176 (1-3) : 191-199. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmatprotec.2006.03.130|
|Abstract:||In the present study, a novel aluminum-based hybrid composite containing titanium particulates (discontinuous/particulates reinforcement) and iron mesh (continuous/interconnected reinforcement) was synthesized using a solidification processing route involving disintegrated melt deposition coupled with hot extrusion. Microstructural characterization studies conducted on hybrid composite revealed reduced grain size (∼44%) when compared to monolithic aluminum, uniform distribution of unreacted and reacted titanium in matrix, and absence of reaction products at the iron-wire/aluminum matrix interface. Results of properties characterization revealed that the presence of hybrid reinforcement led to a reduction in coefficient of thermal expansion (∼7.6%) and an increase in hardness, elastic modulus (∼10%), 0.2% yield strength (20%) and ultimate tensile strength (∼27%). The enhancement in properties realized in hybrid composite was found to be much higher when compared to conventional Al/SiC composite formulations containing relatively higher weight percentages of SiC particulates. © 2006 Elsevier B.V. All rights reserved.|
|Source Title:||Journal of Materials Processing Technology|
|Appears in Collections:||Staff Publications|
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