Study on Electrical, Thermal, Magnetic Properties and Microstructure for - Al, -Al2Cu, ω-Al7Cu2Fe Phases in Al-32.5 wt. % Cu-1 wt. % Fe Ternary Alloy

Abstract

The electrical properties of the Al-32.5 wt. % Cu-1 wt. % Fe ternary alloy were examined, it was observed that the electrical resistivity increased depending on the temperature and it was found as 6.8546x10-8 Ωm - 5.7780x10-7Ωm in the temperature range of 298-810K. The thermal conductivity was calculated using electrical measurement results and it was observed that it decreased depending on the temperature. The ternary alloy (cubic -Al, Fm-3m, 225 a = 4.0480 Å, -tetragonal Al2Cu, I4mcm, 140, a=6.0654 Å c=4.8732 Å, ω-tetragonal Al7Cu2Fe, P4 /mnc, 128, a = 6.3360 Å, m and c = 14.87 Å) phases were obtained. In this ternary alloy, phases were clearly seen in XRD studies and EDAX analyzes at room temperature. Magnetic properties such as magnetic transition temperature and magnetization curves of the alloy were determined.