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

Öz

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

Anahtar Kelimeler

• Cold and warm compaction,powder metallurgy thermoelectric properties,Al-7xxx alloys

Kaynakça

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