Properties Of Magnesium Based On Physical And Chemical Properties Of Magnesium

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2.4.1 Magnesium Properties Figure 2.7 shows the properties of magnesium based on physical, mechanical and chemical properties. Magnesium element is strong, ductile and light- weight metal. It is malleable when heated and react slowly in cold water. The chemical properties are it is highly flammable metal and high chemical reactivity (Boccaccini & Gough, 2007). Figure 2.7: The characteristic of magnesium Table 2.4: Physical properties of pure magnesium (International Magnesium Association, 1943) Physical Properties Value Density (g/cm3) 1.74 Specific Gravity 1.7 Atomic Radius (nm) 0.160 Melting Point ( oC) 650 Specific Heat (J/kg.K) 1025 Table 2.5: Mechanical properties of pure magnesium (International Magnesium Association, 1943) Mechanical Properties Value Tensile Strength (MPa) 100 Yield Strength (MPa) 232 Elongation (%) 7 Brinell Harness (BHN) 75 Table 2.6: Chemical properties of magnesium (Lenntech , 1993) Metallic Element Atomic Number 12 Atomic Mass 24.305 g.mol-1 Group Number 2 Density 1.74g.cm-3 at 20 oC Boiling Point 1107 oC …show more content…

Mechanochemical processes are simple, low-cost technology and environmental and the Planetary Ball Mill machine is used in this mechanochemical process. This Ball Mill machine performs as a grinding by rotating the balls and the materials inside the containers. Collision of ball can make the energy transfer from each of the ball to the sample material inside the closed container. As a result, the particle of sample size decreases due to the surface energy increase. The sample size will change and the chemical reactions also will happen in the materials where the mechanochemical reactions are happened in this stage (Hao Wu & Qiang Li, 2012). In this research, mechanical milling is being used because it refers to the milling of pure metals and compounds (P.G.McCormick & F.H.Froes,

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