Effect of Heat Treatment on the Magnetic Properties of a CuMn Alloy
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In this paper, we reported the effect of heat treatment on the magnetic properties of Cu 75.8-Mn 24.2 alloy (wt%) alloy. Magnetization measurements were performed by using a vibrating sample magnetometer (VSM) at 300 K temperature. Observations of the magnetization as a function of applied field and temperature were conducted between -10 and 10 T magnetic field ranges at constant temperature. Since the grain size is important in determining the magnetic properties of copper-based alloys, two different grain-sized samples were examined by using ac magnetic susceptibility measurements. The magnetic saturation and the coercivity values for the small-grained sample are found higher than those for the larger-grained sample. The magnetic saturation values at room temperature were found to be approximately 3.63 and 3.22 emu/g for large-grained and small-grained samples, respectively. Details of the morphological properties and chemical composition have also been examined by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX), respectively. In addition, X-ray diffraction (XRD) observations were performed for the determination of the crystallography of phases.
KeywordsGrain size Magnetic saturation Quenching Susceptibility
This study was supported financially by the Research Centre of Amasya University (Project No: FMB-BAP 16-0174).
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