A laser cladding process was used to prepare a rare earth-containing boron CaP ceramic coating.X-ray diffraction(XRD),scanning electron microscopy(SEM),and in vitro simulated body fluid(SBF)immersion experiments were performed to determine the phase composition and structure of the coating.Morphology and biological activity were studied.The results showed that after adding rare earth oxide La 2O 3,the diffraction peak of hydroxyapatite increased significantly,the grains were significantly refined,the bone-like apatite deposited on the coating surface increased...