| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
K-6: Biomedical Surface Treatment of Non-toxic Ti-Zr-Mo-Sn Shape Memory Alloys by Micro-arc Oxidation |
| Author(s) |
Yeon-Wook Kim |
| On-Site Speaker (Planned) |
Yeon-Wook Kim |
| Abstract Scope |
The surface of non-toxic Ti-Zr-Mo-Sn shape memory alloys was modified by micro-arc oxidation treatment. A porous Ti oxide coating layer was formed on the Ti-Zr-Mo-Sn alloy and its crystal structure was analyzed as rutile phase. Both the thickness of the oxide layer and the pore size on the surface were strongly dependent on the applied voltage as well as the micro-arc oxidizing time during the oxidation treatment. When an applied voltage of 400 V had been applied for 5 minutes, the thickness of the oxide layer and the pore size were 0.66 nm and 100 nm, respectively. The thickness of the layer and the pore size keep increasing with increasing the applied voltage. The Ti oxide passive layer of the Ni-free Ti-based shape memory alloy can attribute to the excellent biocompatibility, and the formation of nano-sized pores may maximize the interlocking between mineralized bone and the surface of the implant. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Surface Modification and Coatings, Titanium |