Abstract
The effect of various nanoparticles (BN, Al2O3, ZrO2, Gr) on the mechanical and physical properties of magnesium was studied in the present paper. Microcrystalline magnesium reinforced with nanoparticles was prepared by ball milling and hot extrusion. Microhardness of samples was measured at room temperature. The linear thermal expansion of the nanocomposites was measured over a wide temperature range from RT up to 400°C. Dynamic modulus and amplitude dependent internal friction were measured at room temperature. Although all nanocomposites were prepared with the same technology substantial differences in mechanical and physical properties were estimated among various nanocomposites. Bonding between magnesium matrix and ceramic and graphite nanoparticles plays important role for the resulting nanocomposites properties.
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