University of Rome La Sapienza, Department of Chemical Engineering and Materials, Via Eudossiana, 18, 00184 Rome, Italy.
Med Eng Phys. 2010 Oct;32(8):908-13. doi: 10.1016/j.medengphy.2010.06.007.
This work presents an alternative bearing surface in the field of total hip replacements. It is composed of a polymer composite polyether-ether-ketone (Peek) as the matrix and a carbon fibre as reinforcement. The authors carried out experimental research in order to investigate the formation of debris caused by tribological coupling of three types of Peek and cobalt chrome alloy. The wear tests (ASTM 99G) have been performed with a pin on disc tribometer in an air environment, under the following conditions: dry, water lubrication using demineralised water as a lubricant and human serum. A method of filtering under vacuum is used to extract the debris from the lubricants used in the tribological test, and the analysis at Scanning Electron Microscopy (SEM) is used to characterize the debris.
本工作提出了一种全髋关节置换领域的新型轴承表面。它由聚合物复合材料聚醚醚酮（PEEK）作为基体和碳纤维作为增强材料组成。作者进行了实验研究，以研究三种 PEEK 和钴铬合金摩擦耦合引起的磨屑形成。磨损试验（ASTM 99G）在空气环境中使用销盘摩擦磨损试验机进行，条件如下：干摩擦、用水润滑，以去离子水作为润滑剂和人血清。使用真空过滤的方法从摩擦试验中使用的润滑剂中提取磨屑，并使用扫描电子显微镜（SEM）分析来表征磨屑。
