The Physical Properties of Aluminium-7xxx Series Alloys Produced By Powder Metallurgy Method

Alumix-431 materials were prepared by cold and warm compaction method applying 350-400 mpa pressures at rt (room temperature) 50 and 80°c temperatures. the density measurements of materials were performed; the thermoelectric properties of materials were investigated at 5-300k under the he atmosphere, and the relationship between the measurements and sample properties was examined. the measurements of thermoelectric properties showed that maximum resistivity [alumix -431-1] and thermal conductivity [alumix -431-6] values were obtained 0.161ωm and 24.31w/km, respectively at 285-295k temperature ranges and minimum electrical resistivity and thermal conductivity values were obtained on alumix-431-6 and alumix-431-1 samples, respectively. it was observed that seebeck coefficient values varied mostly from negative sign to positive sign indicated dominate from carriers. the maximum figure of merit value was determined as 18.71×10-2; on the alumix-431-5 alloy at 96.904k.