Background:

 The global Bio-implant market size was estimated at USD 68,686.91 million in 2019 and is expected to reach USD 72,590.27 million in 2020.

 Titanium and Zirconia are the base materials used for implants. However, the problem of corrosion limits their lifetime. Therefore, searching for an effective biocompatible, wear and corrosion resistance coating is essential.

Growth of Nanodiamonds (NDs) on Ti substrates at Room Temperature

Owing to sp3 hybridized carbon bonding of diamond crystallites, NDs surfaces merge impressive mechanical properties, high biocompatibility, and antibacterial properties. In this project, we search the growth of Nanodiamond films on commercial Ti substrates by physical vapor deposition method at room temperature.

Different treatments have been explored for the growth of NDs on Ti. The results revealed that the in-situ Ar ion etching is the most effective process. The adhesion of 3 μm NDC films with 54 GPa hardness on Ti substrates was achieved via a hybrid system of ion etching gun and coaxial arc plasma deposition (IG/CAPD) [Applied Physics Express 15 (11), 115004,2022]