Characterization and Properties of Copper-Silica Sand Nanoparticle Composites

Abstract:

Copper-based microcomposites fabricated by powder metallurgy with subsequent plastic deformation have received increasing attention over recent years. These microcomposites possess good electrical conductivity in combination with high mechanical properties. The present study aims to explore potential technical merits in developing a prealloyed powder metallurgy copper based composites with silica sand nanoparticles reinforcement. Relevant mechanical properties and electrical conductivity improvements are the main targets. A copper based composite with 5, 10, 15 and 20 wt.% of silica sand nanoparticles were developed through the powder metallurgy process. It was observed that by addition of silica sand nanoparticles with 20% increased the hardness up to 143HV. Optimum electrical conductivity of the composites was achieved in the 15 wt.% silica sand nanoparticles. Advanced particle rearrangement mechanism due to homogeneous and fine distribution of silica sand nanoparticles into pore sites of the composites was also observed. The silica sand nanoparticles composites properties that are much more surface-related seen to be improved convincingly compared with the bulk controlled.

• Periodical: Defect and Diffusion Forum (Volumes 319-320)
• Pages: 95-105
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.319-320.95
• Online since: October 2011
• Authors: Tahir Ahmad, Othman Mamat
• Keywords: Copper-Silica Sand Nanoparticle Composites, Electrical Conductivity, Mechanical Property, Microstructure

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