• Prashantha Shindle
• U N Kempaiah
• Madeva Nagaral
• V Auradi

The work is carried out to investigate and study the mechanical properties of nano Al2O3 reinforced copper-tin alloy (Cu-Sn) metal matrix composites. In the present work copper-10% tin alloy was taken as the base matrix and 4 wt.% of nano Al2O3 particulates as reinforcement material to prepare metal matrix composites by stir casting method. For the composites, the reinforcement particulates were preheated to a temperature of 500ºC and dispersed into a vortex of molten copper alloy. The microstructure characterization was done using scanning electron microscope. Mechanical properties like hardness, ultimate tensile strength, yield strength and percentage elongation were evaluated as per ASTM standards. Further, scanning electron microphotographs revealed that there was uniform distribution of nano Al2O3 particulates in copper-tin alloy matrix. Hardness, ultimate tensile strength and yield strength increased in the case 4 wt. % of nano Al2O3 reinforced composites. Ductility of the composites was decreased in copper-tin-Al2O3 composites.

"SYNTHESIS AND MECHANICAL CHARACTERIZATION OF NANO Al2O3 REINFORCED COPPER-TIN METAL COMPOSITES ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.325-333, November-2018, Available :http://www.jetir.org/papers/JETIR1811045.pdf

"SYNTHESIS AND MECHANICAL CHARACTERIZATION OF NANO Al2O3 REINFORCED COPPER-TIN METAL COMPOSITES ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp325-333, November-2018, Available at : http://www.jetir.org/papers/JETIR1811045.pdf