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<p>Orthopedic trauma care requires advanced biomaterials to enhance bone repair and regeneration. Traditional metallic implants like titanium and stainless-steel offer strong mechanical properties but struggle with long-term implant stability, wear resistance, and bioactivity. Nanocrystalline composites, synthesized via high-energy planetary ball milling, provide a promising solution by improving both mechanical strength and bioactivity. In this study, a TiB₂–TiC–MgO–Mg₃B₂O₆ composite was synthesized using three reductant systems: 90&#xa0;wt% Mg–10&#xa0;wt% C, 70&#xa0;wt% Mg–30&#xa0;wt% C, and 50&#xa0;wt% Mg–50&#xa0;wt% C. A design of experiments (DOE) approach optimized the milling conditions, and XRD and FE-SEM analyses confirmed phase composition and morphology. The 90&#xa0;wt% Mg–10&#xa0;wt% C system produced the most successful composite, with TiB₂, TiC, MgO, and Mg₃B₂O₆ phases and a nanocrystalline structure. The presence of bioactive Mg₃B₂O₆ and biocompatible TiB₂ phases, combined with the enhanced surface area of the nanocrystalline matrix, suggests strong potential for orthopedic applications and bone regeneration.</p>

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Development of Nanocrystalline Composites for Enhanced Orthopedic Trauma Care

  • 期刊论文

  • 发表日期：

    2025年6月14日

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  • Zhi-bin Guo,
  • Fan-bin Kong

摘要

Orthopedic trauma care requires advanced biomaterials to enhance bone repair and regeneration. Traditional metallic implants like titanium and stainless-steel offer strong mechanical properties but struggle with long-term implant stability, wear resistance, and bioactivity. Nanocrystalline composites, synthesized via high-energy planetary ball milling, provide a promising solution by improving both mechanical strength and bioactivity. In this study, a TiB₂–TiC–MgO–Mg₃B₂O₆ composite was synthesized using three reductant systems: 90 wt% Mg–10 wt% C, 70 wt% Mg–30 wt% C, and 50 wt% Mg–50 wt% C. A design of experiments (DOE) approach optimized the milling conditions, and XRD and FE-SEM analyses confirmed phase composition and morphology. The 90 wt% Mg–10 wt% C system produced the most successful composite, with TiB₂, TiC, MgO, and Mg₃B₂O₆ phases and a nanocrystalline structure. The presence of bioactive Mg₃B₂O₆ and biocompatible TiB₂ phases, combined with the enhanced surface area of the nanocrystalline matrix, suggests strong potential for orthopedic applications and bone regeneration.