Experimental investigation on the mechanical, structural and thermal properties of Cu–ZrO2 nanocomposites hybridized by graphene nanoplatelets

摘要: Abstract Hybrid Cu–ZrO2/GNPs nanocomposites were successfully produced using powder metallurgy technique. The effect of GNPs mass fraction, 0, 0.5, 1 and 1.5%, on the mechanical electrical properties hybrid nanocomposite was investigated while maintaining ZrO2 fraction constant at 5%. High-energy ball milling applied for mixing powders followed by compaction sintering. morphological analysis showed acceleration Cu particles fracture during with addition up to 0.5% noticeable reduction agglomeration size. Moreover, crystallite size Cu–5%ZrO2/0.5%GNPs revealed smaller size, 142 nm, compared 300 nm Cu–5%ZrO2 nanocomposite. Additionally, shows homogeneous distribution both reinforcement phases in sintered samples. compressive strength increased content reached 504.6 MPa at 0.5%, 31% higher than Cu-5%ZO2. thermal conductivity had maximum value 0.5 wt%GNPs 345 W/m k. results provide efficient manufacturing process high good nanocomposites, which is applicable many structural applications such as heat exchange purposes.