可降解镁基复合材料的制备及其在骨科领域的研究进展

欧阳思慧, 佘加, 陈先华, 潘复生

Preparation of Biodegradable Mg-Based Composites and Their Recent Advances in Orthopedic Applications

OUYANG Sihui, SHE Jia, CHEN Xianhua, PAN Fusheng

图2 超声辅助搅拌铸造法制备镁基复合材料实验装置示意图和流程及显微组织和力学性能[33,37,39,40]

Fig.2 Schematics of the ultrasonic-assisted stir casting process[33] (a) and ultrasonic-assisted semi-solid stirring method for preparing graphene-reinforced Mg-based composites[37] (b) and microstructures and mechanical properties[39,40] (c, d) (c) SEM image of nano-SiC reinforced Mg-Zn-based composites; Fourier-filtered atomic-resolution TEM image of SiC/Mg interface; compression engineering stress-strain curve and in situ SEM images of micro-pillar tests (Insets in Fig.2c are the fast Fourier transforms (FFT) of the magnesium matrix (left) and the SiC nanoparticle (right), respectively)[39] (d) comparisons of mechanical properties of Mg-based composites (Inset in Fig.2d is SEM image of extruded nano-TiC reinforced Mg-Zn-Ca composites; σUTS—ultimate tensile strength, σys—yield strength)[40]