Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15416
Title: Creation of new magnesium-based material using different types of reinforcements
Authors: SYED FIDA HASSAN
Keywords: Magnesium, Nanocomposite, Nano-particle, Solidification, Strength, Ductilily,
Issue Date: 26-Jul-2006
Source: SYED FIDA HASSAN (2006-07-26). Creation of new magnesium-based material using different types of reinforcements. ScholarBank@NUS Repository.
Abstract: Magnesium based materials has extensive demand for applications that stretch from automobile and aerospace industries in replacement of aluminum and steel to electronic and computer industries in replacement of plastics. In the present study, commercially pure magnesium reinforced with three different types of nano-size oxide ceramic particulates, namely, Al2O3, Y2O3, and ZrO2, was fabricated using an innovative solidification processing route commonly termed as disintegrated melt deposition (DMD) and blend-press-sinter powder metallurgy (PM) technique followed by hot extrusion. Microstructural characterization shows that a more uniform distribution of reinforcement particulates in magnesium matrix and finer matrix grain size can be obtained using the DMD processing methodology when compared to PM processing methodology. Mechanical properties characterization revealed that all the reinforcements simultaneously improve strength and ductility of magnesium matrix processed using DMD and PM techniques except for nano-ZrO2. However, combined mechanical properties of composites with Al2O3 reinforcement remain superior when compared with rest of the nanocomposites.
URI: http://scholarbank.nus.edu.sg/handle/10635/15416
Appears in Collections:Ph.D Theses (Open)

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