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|Title:||Effect of sintering techniques on the microstructure and tensile properties of nano-yttria particulates reinforced magnesium nanocomposites||Authors:||Hassan, S.F.
|Issue Date:||17-Mar-2011||Citation:||Hassan, S.F., Tun, K.S., Gupta, M. (2011-03-17). Effect of sintering techniques on the microstructure and tensile properties of nano-yttria particulates reinforced magnesium nanocomposites. Journal of Alloys and Compounds 509 (11) : 4341-4347. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jallcom.2011.01.064||Abstract:||In the present study, magnesium nanocomposites were fabricated using magnesium as matrix and nano-yttria as reinforcement. Nanocomposites with 0.2 and 0.7 vol.% of Y2O3 particulates with an average size of 29-50 nm were synthesized blend-press-sinter powder metallurgy technique followed by hot extrusion. Conventional slow heating and microwave assisted rapid heating sintering techniques were used. Microstructural characterization of the materials revealed fairly uniform distribution of reinforcement with the presence of minimal porosity in all of the processed materials, while significant grain refinement in the cases of conventionally sintered materials. Tensile properties characterization of the conventional and microwave sintered nanocomposites revealed that significant and resembling increase in the 0.2% yield strength and ultimate tensile strength of magnesium matrix with the increasing presence of reinforcement. The ductility and work of fracture of magnesium matrix increased significantly in the case of conventionally sintered nanocomposites when compared to the microwave assisted sintered nanocomposites. © 2011 Elsevier B.V.||Source Title:||Journal of Alloys and Compounds||URI:||http://scholarbank.nus.edu.sg/handle/10635/85064||ISSN:||09258388||DOI:||10.1016/j.jallcom.2011.01.064|
|Appears in Collections:||Staff Publications|
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