| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Preparation of Boronized Ti6Al4V/HA Composites by Powder Sintering for Dental Applications: Effect of Mixing Method |
| Author(s) |
Shangyong Zuo, Qian Peng, Tong Zhang, Ting Luo, Yuehong Wang, Zhiwei Peng |
| On-Site Speaker (Planned) |
Shangyong Zuo |
| Abstract Scope |
Three methods, namely traditional one-step ball milling method, two-step ball milling method, and ball milling-resonant acoustic mixing method were used for mixing the powders of Ti6Al4V, hydroxyapatite (HA) and TiB2 before sintering at 1050 ℃ for 30 min to prepare boronized Ti6Al4V/HA composites as dental implants. Their effects on the composition, microstructure and mechanical properties of the composite were investigated. It was found that compared with traditional one-step ball milling and two-step ball milling method, the ball milling-resonant acoustic mixing method led to lower HA decomposition and better TiB2 reactivity during subsequent sintering process, which contributed to higher mechanical properties. When the powders were mixed by ball milling for 12 h, followed by resonant acoustic mixing for 20 min, the composite obtained after microwave sintering at 1050 ºC for 30 min had good comprehensive properties, namely compressive strength of 331.6 MPa, compressive modulus of 8.69 GPa and Vickers microhardness of 286.0 HV. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Titanium, Composites |