粉末冶金和超声浸渗制备双连续结构钛镁复合材料的研究。
Study on titanium-magnesium composites with bicontinuous structure fabricated by powder metallurgy and ultrasonic infiltration.
机构信息
Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, School of Materials Science and Engineering, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China.
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, School of Materials Science and Engineering, Harbin Institute of Technology, P.O. Box 433, Harbin 150001, PR China.
出版信息
J Mech Behav Biomed Mater. 2018 May;81:10-15. doi: 10.1016/j.jmbbm.2018.02.017. Epub 2018 Feb 14.
Titanium-magnesium (Ti-Mg) composites with bicontinuous structure have been successfully fabricated by powder metallurgy and ultrasonic infiltration for biomaterial potential. In the composites, Ti phase is distributed continuously by sintering necks, while Mg phase is also continuous, distributing at the interconnected pores surrounding the Ti phase. The results showed that the fabricated Ti-Mg composites exhibited low modulus and high strength, which are very suitable for load bearing biomedical materials. The composites with 100 µm and 230 µm particle sizes exhibited Young's modulus of 37.6 GPa and 23.4 GPa, 500.7 MPa and 340 MPa of compressive strength and 631.5 MPa and 375.2 MPa of bending strength, respectively. Moreover, both of the modulus and strength of the composites increase with decreasing of Ti particle sizes. In vitro study has been done for the preliminary evaluation of the Ti-Mg composites.
钛镁（Ti-Mg）复合材料具有双连续结构，通过粉末冶金和超声浸渗成功制备，具有生物材料潜力。在复合材料中，Ti 相通过烧结颈连续分布，而 Mg 相也连续分布，分布在围绕 Ti 相的互联孔隙中。结果表明，所制备的 Ti-Mg 复合材料表现出低模量和高强度，非常适合承重生物医学材料。粒径为 100 µm 和 230 µm 的复合材料的杨氏模量分别为 37.6 GPa 和 23.4 GPa，抗压强度分别为 500.7 MPa 和 340 MPa，抗弯强度分别为 631.5 MPa 和 375.2 MPa。此外，复合材料的模量和强度均随 Ti 颗粒尺寸的减小而增加。已经进行了体外研究，对 Ti-Mg 复合材料进行了初步评估。
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