YÜKSEK ENERJİLİ ÖĞÜTME İLE ÜRETİLEN Al2O3 TAKVİYELİ CU KOMPOZİTLERDE PARÇACIK BOYUTUNUN ETKİSİ

Production of copper (Cu) composites with a reinforced Cu matrix using mechanical alloying Aluminum oxide (Al2O3) particles different sizes was achieved high-energy ball milling procedure. The initial materials consisted inert gas-atomized spherical electrolytic powders containing 0.5 wt. % commercial Al2O3 powders, particle ranging from 10 µm to 1 µm. were milled at 500 rpm for 3 hours attain consistent distribution throughout in the matrix. that then subjected cold-pressing MPa and isothermally sintered 1.5 880°C an Ar atmosphere. fabricated composite characterized X-ray diffraction analysis (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive spectroscopy (EDXS), density macrohardness tests. wear properties mechanism investigated through tribological pin-on-disc experiments, which revealed reinforcing effect more significant when finely dispersed combined into compared coarse particles.