Evaluation of the Microstructure and Magnetic Properties of Amorphous Co62Nb32B6 Alloy Produced by Mechanical Alloying

This work aims to synthesize the alloy Co62Nb32B6 through a wet-route mechanical alloying using a planetary ball mill. A disc rotation per minute and a ball/powder weight ratio of 350 rpm and 20:1 were used, with a grinding time of 15 h, respectively. The characterization of the Co62Nb32B6 alloy was performed by X-ray diffraction (XRD), examined by scanning electron microscope-energy-dispersive X-ray spectroscopy (SEM–EDS), thermoanalytical techniques (TGA/DTA), vibrating sample magnetometer (VSM), and confirmed by the BET method type IV isotherms with a hysteresis loop for mesoporous materials. The results indicated the evolution of the amorphous phase in the Co62Nb32B6 composition through the mechanical alloying process and exhibited good soft magnetic properties with the addition of the B metalloid element and their excellent unique ferromagnetic properties. Through thermoanalytical analysis (TGA/DTA), it was shown that at higher temperatures, oxidation with a significant increase in mass gain of 19.69