无机材料学报 ›› 2010, Vol. 25 ›› Issue (4): 349-353.DOI: 10.3724/SP.J.1077.2010.00349 CSTR: 32189.14.SP.J.1077.2010.00349

• 研究论文 • 上一篇    下一篇

炭/炭复合材料人工髋关节磨损颗粒研究

张磊磊1,胡 涛1,2, 李贺军1, 卢锦花1, 沈学涛1, 曹伟锋1, 王 斌1   

  1. 1. 西北工业大学 材料学院, 西安 710072; 2. 第四军医大学 西京医院心血管内科, 西安 710032
  • 收稿日期:2009-08-10 修回日期:2009-10-15 出版日期:2010-04-20 网络出版日期:2010-04-27

Wear Particles of Carbon/Carbon Composite Artificial Hip Joints

ZHANG Lei-Lei1, HU Tao1,2, LI He-Jun1, LU Jin-Hua1, SHEN Xue-Tao1, CAO Wei-Feng1, WANG Bin1   

  1. 1. School of Materials Science, Northwestern Polytechnical University, Xi’an 710072, China; 2. Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
  • Received:2009-08-10 Revised:2009-10-15 Published:2010-04-20 Online:2010-04-27

摘要:

分离提取了炭/炭复合材料在髋关节模拟试验机中形成的磨损颗粒. 采用激光粒度仪考察了磨损颗粒的尺寸分布, 借助扫描电镜分析了磨损颗粒的形貌特征, 采用三维轮廓仪检测了磨损颗粒的厚度规律. 结果表明, 炭/炭复合材料磨损颗粒的尺寸分布在0.3~93.9μm之间, 其形貌和厚度依据颗粒尺寸呈现规律性的分布, 大尺寸(>30μm)颗粒基本是破损的碳纤维, 厚度稳定; 中尺寸(3~30μm)颗粒的外形不规则, 边界轮廓复杂, 厚度分布范围广泛; 小尺寸(<3μm)颗粒呈现圆片形或球形, 厚度分布在亚微米级别. 同时根据实验结果, 揭示了炭/炭复合材料磨损颗粒在磨擦过程中的演变过程.

关键词: 炭/炭复合材料, 磨损颗粒, 假体, 人工髋关节

Abstract:

The carbon/carbon composite wear particles generated from a hip joint simulator were separated. The size, morphology and thickness of the particles were tested by laser particle size analyzer, scanning electron microscope and 3-D profiler, respectively. The results show that the particles are 0.3-93.9μm in size and the morphology and the thickness of the particles distributes regularly according to their sizes. The particles whose sizes are larger than 30μm are carbon fibers with a constant thickness. The particles whose thicknesses are in a broad range with medium size (3-30μm) show irregular morphology and complex boundary. The particles whose thicknesses are in the range of submicrometers are less than 3μm in size and have a spherical or circular shape. Based on the experimental results, the evolvement of the wear particles in the wear process is explained.

Key words: carbon/carbon composites, wear particles, prosthesis, artificial hip joint

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