首页> 美国卫生研究院文献>Materials >Porous Titanium Scaffolds Fabricated by Metal Injection Moulding for Biomedical Applications
【2h】

Porous Titanium Scaffolds Fabricated by Metal Injection Moulding for Biomedical Applications

机译:金属注射成型生物医学应用的多孔钛支架

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Biocompatible titanium scaffolds with up to 40% interconnected porosity were manufactured through the metal injection moulding process and the space holder technique. The mechanical properties of the manufactured scaffold showed a high level of compatibility with those of the cortical human bone. Sintering at 1250 °C produced scaffolds with 36% porosity and more than 90% interconnected pores, a compressive yield stress of 220 MPa and a Young’s modulus of 7.80 GPa, all suitable for bone tissue engineering. Increasing the sintering temperature to 1300 °C increased the Young’s modulus to 22.0 GPa due to reduced porosity, while reducing the sintering temperature to 1150 °C lowered the yield stress to 120 MPa, indicative of insufficient sintering. Electrochemical studies revealed that samples sintered at 1150 °C have a higher corrosion rate compared with those at a sintering temperature of 1250 °C. Overall, it was concluded that sintering at 1250 °C yielded the most desirable results.
机译:通过金属注射成型工艺和空间保持器技术制造了具有高达40%的互连孔隙率的生物相容性钛支架。制成的支架的机械性能显示出与人类皮质骨的高度相容性。在1250°C的温度下烧结产生的支架具有36%的孔隙率和90%以上的互连孔,220 MPa的压缩屈服应力和7.80 GPa的杨氏模量,均适用于骨组织工程。由于孔隙率降低,将烧结温度提高到1300°C,杨氏模量增加到22.0 GPa,而将烧结温度降低到1150°C,屈服应力降低到120 MPa,表明烧结不充分。电化学研究表明,与1250°C的烧结温度相比,在1150°C的温度烧结的样品具有更高的腐蚀速率。总体而言,得出的结论是,在1250°C的温度下烧结可获得最理想的结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号