Effect of doping different Si source on Ca-P bioceramic coating fabricated by laser cladding.

The doping of silicon (Si) has been proved to improve the bioactivity of Ca-P ceramics. In light of this thinking, in the present study, Ca-P coatings with LaO by addition of 10 wt% SiO and 10 wt% diatomaceous earth (DE) were fabricated by laser cladding on Ti6Al4V, respectively. Coating doped without Si was also fabricated as the comparison group for the experiment.

Study on microstructure, microhardness, bioactivity, and biocompatibility of La O -containing bioceramic coating doping SiO fabricated by laser cladding.

To solve the lack of strength of calcium phosphate ceramic coatings in load-bearing applications, gradient Ca-P bioceramic coatings doped with La O and SiO are fabricated by laser cladding on Ti-6Al-4 V. The effect of SiO on microstructure, microhardness, bioactivity, and biocompatibility of coatings was investigated. The experimental results illustrate that the coating doped with La O and SiO has excellent metallurgical bonding.