首页> 外文会议>European Powder Metallurgy Association;Euro PM congress exhibition >Fabrication of Highly Porous Titanium Scaffolds Using Metal Injection Moulding and Space Holder
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Fabrication of Highly Porous Titanium Scaffolds Using Metal Injection Moulding and Space Holder

机译:金属注射成型和空间支架制造高多孔性钛支架

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Highly porous and biocompatible titanium scaffolds were fabricated using metal injection moulding ofspherical titanium powder (powder size: -45 μm) with potassium chloride (powder size: -250 μm) as atemporary space holder. Property evaluation of scaffolds with different porosity fractions, confirmed ahigh level of compatibility between their mechanical properties and those of human cortical bone. Theoptimum sintering temperature was found to be 1250 °C producing scaffolds with more than 90%interconnected pores in the size range of 200-250 μm, Yield stress of 220 MPa and Young’s modulusof 7.80 GPa, all of which are suitable for bone tissue engineering. Increasing the sintering temperatureto 1300 °C increased the Young’s modulus to 22.0 GPa, while reducing the temperature to 1150 °Creduced the yield stress to 120 MPa due to incomplete sintering.
机译:高多孔性和生物相容性的钛支架是使用金属注射成型法制造的。 球形钛粉(粉末尺寸:-45μm),氯化钾(粉末尺寸:-250μm) 临时空间持有人。对具有不同孔隙率分数的脚手架的性能评估,证实了 它们的机械性能与人类皮质骨的机械性能之间具有高度的相容性。这 发现最佳烧结温度为1250°C,可生产90%以上的支架 相互连通的孔,尺寸范围为200-250μm,屈服应力为220 MPa,杨氏模量 7.80 GPa,所有这些都适用于骨组织工程。提高烧结温度 到1300°C,杨氏模量增加到22.0 GPa,而温度降低到1150°C 由于烧结不完全,屈服应力降低到120 MPa。

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