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The Cu70Co30 alloy was developed by a non-equilibrium method of “mechanical alloying”, from a mixture of copper powder and pure cobalt. The nanostructured alloy Cu-Co with grains with a size of about 12 nm, has dierent electromagnetic properties which are often superior to those of conventional solid alloy, because of the critical size eect. In this work we are interested in the electromagnetic properties of the synthesized material. Resistivity, eddy current and the magnetization evolution were studied. The frequencies selected for plotting the diagram vary from 100 Hz to 100 kHz. To satisfy the Weiss condition, the excitation field must be of the same order of magnitude as the field that characterizes the area of Weiss. For all prepared series, the evolution of the magnetization as a function of milling time was analyzed. The influence of milling time on the resistivity variation is shown. DOI: 10.12693/APhysPolA.130.112 PACS/topics: 13.40.‐f

Electromagnetic Properties in Nanostructured Alloy Cu70Co30Obtained by a Non-Equilibrium Method

Electromagnetic Properties in Nanostructured Alloy Cu₇₀Co₃₀Obtained by a Non-Equilibrium Method