About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
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Presentation Title |
Synthesis of porous composites with ultra-low moduli as dental implants for patients with compromised bone quality |
Author(s) |
Shangyong Zuo, Qian Peng, Tong Zhang, Yihong Chen, Hengrong Xiong, Zhiwei Peng |
On-Site Speaker (Planned) |
Qian Peng |
Abstract Scope |
Conventional titanium alloys are unsuitable as implants for patients with poor bone quality due to their excessive high elastic modulus. Porous boronized Ti6Al4V/FHA composites were synthesized via microwave sintering at 1050°C for 30 min, using 0-10 wt.% urea as a temporary space holder material. The results showed that increasing urea content linearly increased porosity and enhanced microwave absorption, promoting boronization. With 0-4 wt.% urea, the composites retained crystalline FHA, while mechanical properties declined significantly, with the compressive modulus dropping from 10.4 GPa to 2.0 GPa. At higher urea content (6-10 wt.%), FHA crystallinity decreased markedly, and mechanical property changes became more gradual. The composite with 4 wt.% urea exhibited an ultra-low compressive modulus of 2.0 GPa, compressive strength of 83 MPa, microhardness of 183 HV, and superior wettability, as indicated by a water contact angle of 32.1°, making it suitable for patients with poor bone quality. |
Proceedings Inclusion? |
Planned: |
Keywords |
Biomaterials, Composites, Mechanical Properties |