تهيه نانو پودر كامپوزيتي Co3W/CUبه روش مكانيكي _ شيميايي

Mechano-Chemical Synthesis of Co3W/Cu Composite Nanopowders

In this research, mechano-chemical synthesis of Co3W/Cu composite nanoparticles on Co3W based intermetallic compound was investigated. Powder mixture of C03O4, WC and CuO (99/9 % purity) were first milled by high energy planetary ball mill and decline in hydrogen reduction system. During ball mill, powder mixtures at 200rpm, ball to powder ratio (BPR) 15 and time 1 to 4 hours. Synthesis of composite nanopowders on C03W based intermetallic compound with mean particle size of 30 nm occurred during reduction process at 850-1100 °C in tube furnace for 1 hour.