Ti-25Nb-25Ta alloy treated by plasma electrolytic oxidation in phosphoric acid for implant applications

Among titanium alloys with non-toxic elements, the Ti-25Nb-25Ta alloy has good elastic behavior for applications in osseous implants, biocompatibility, and excellent corrosion resistance. The present study aimed to better biocompatibility characteristics of modifying its surface through Plasma Electrolytic Oxidation (PEO) treatment. formed oxide coating is amorphous composed two distinct porous formations: smaller hole-shaped pores larger volcano-like pores. regions formation hole shaped presented highest atomic percentage chemical element phosphorus. Nanoindentation tests have shown that hardness slightly lower than commercially pure grade 2 (a material used as reference), while modulus measurements more suitable values implant application (lower when compared reference). After PEO treatment there were significant mechanical improvements (increased fairly decreased modulus) tissue. Despite hard biological tissues, features.