Fabrication of Bioactive Titanium Parts by MIM Techniques Using Surface Treatment

Though Ti and Ti alloy with thermal sprayed apatite coatings have been applied to artificial joints and dental implants, the coatings are hard to combine directly with the substrates. In this study, a new rapid and easy surface treatment, by which the reactants can combine to the substrates directly, has been invented. It is a high apatite forming method. Among the substances generated by the treatment, one shows strong alkali, and others are considered to act as kernels during the bone-like apatite layer growth process. From these kernels, effective bone-like apatite layer can form on the surface of the substrates in a simulated body fluid (SBF).