β型Ti-15Mo-5Zr-3Al合金単結晶を用いた低ヤング率ボーンプレートの開発  [in Japanese] Development of Single Crystalline Bone Plate with Low Young's Modulus Using Beta-type Ti-15Mo-5Zr-3Al Alloy  [in Japanese]

Access this Article

Search this Article

Author(s)

    • 當代 光陽 Todai Mitsuharu
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 萩原 幸司 Hagihara Koji
    • 大阪大学大学院工学研究科知能・機能創成工学専攻 Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University
    • 石本 卓也 [他] Ishimoto Takuya
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
    • 中野 貴由 Nakano Takayoshi
    • 大阪大学大学院工学研究科マテリアル生産科学専攻 Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

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 mm<sup>3</sup> 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.

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 mm<sup>3</sup> 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.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 101(9), 501-505, 2015

    The Iron and Steel Institute of Japan

Codes

Page Top