Abstract
New single crystalline bone plate that has extremely low Young's modulus was fabricated using an ISO certified biomedical material alloy with a composition of Ti-15Mo-5Zr-3Al in mass %. Single crystals of the Ti-15Mo-5Zr-3Al alloy along [001] direction were succeeded to be grown by using the seed crystal in order to develop the long bone plate along the [001] direction with the lowest Young's modulus. The ω phase with relatively high Young's modulus was not confirmed to precipitate in the single crystals at room temperature. Using the oriented single crystals, bone plate with dimensions of 42 × 5 × 1.5 mm3 and 8 holes for screws could be shaped to be along [001], which exhibit the superior low Young's modulus of ∼40 GPa comparable to that along the longitudinal bone axis. The developed single crystalline bone plate has a high potential for a clinical use in the orthopedic field.
| Original language | English |
|---|---|
| Pages (from-to) | 501-505 |
| Number of pages | 5 |
| Journal | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan |
| Volume | 101 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2015 |
Keywords
- Biomaterials
- Low Young's modulus
- Orthopedic implant
- Single crystalline bone plate
- Stress shielding
- β-type Ti alloy
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry