Application of Amorphous Alloy Co69Nb25B6 for Orthopedic Implants

Abstract

This study investigates the potential of the amorphous alloy Co₆₉Nb₂₅B₆ as a promising biomaterial for orthopedic implants. The alloy was produced via high-energy milling (HEM). An amorphous Co₆₉Nb₂₅B₆ powdered alloy was prepared by mechanical alloying process. Notably, 20 g of powder were used with a powder-to-ball weight ratio of approximately 20:1 at a rotation speed of 300 rpm. Characterization of the Co₆₉Nb₂₅B₆ alloy was carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), and a vibrating sample magnetometer (VSM). The results showed that the amorphous Co₆₉Nb₂₅B₆ alloy powder exhibited a high degree of amorphous phase formation, a flake-like morphology, and a particle size of approximately 10 μm. Additionally, the Co₆₉Nb₂₅B₆ alloy demonstrated soft ferromagnetic behavior, with a saturation magnetization of 0.23 emu/g after 20 h of milling. This research highlights the potential of amorphous alloy Co₆₉Nb₂₅B₆ as a viable material for traumatic orthopedic medical devices.