Influence of Thermal Annealing Regimes on the Magnetic Permeability of (CoFe)\({}_{\mathbf{75}}\)Si\({}_{\mathbf{10}}\)B\({}_{\mathbf{15}}\)-Based Amorphous Ribbons

This study is dedicated to the influence of thermal annealing regimes on the magnetic permeability of (CoFe)\({}_{75}\)Si\({}_{10}\)B\({}_{15}\) amorphous ribbon samples. Due to their unique structure, amorphous materials are distinguished by their high magnetic properties, which can be significantly influenced by thermal annealing processes. In this work, the dependence of maximum magnetic permeability on isothermal holding time and temperature during thermal annealing in air at 200–400\({}^{\circ}\)C was investigated, and diffusion processes were also studied. The main objective is to understand how the maximum magnetic permeability of (CoFe)\({}_{75}\)Si\({}_{10}\)B\({}_{15}\) amorphous ribbon samples changes at different temperatures and isothermal holding times. The results show that annealing at temperatures between 300–400\({}^{\circ}\)C significantly improves the magnetic permeability of the ribbons, thereby expanding their potential applications. This study identifies how the magnetic properties of amorphous ribbons can be enhanced through thermal annealing. This research emphasizes the importance of optimizing thermal annealing to further develop the application areas of amorphous ribbon.