The properties of diamond-like carbon coatings used for artificial joints

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Kovove Materialy-Metallic Materials Pub Date : 2013-01-01 DOI:10.4149/KM_2012_4_277

M. Madej, D. Ozimina, I. Piwoński, A. Kisielewska

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引用次数: 4

Abstract

The paper presents the results of the tribological tests for materials used in elements of hip and knee endoprostheses. The tests were conducted for a Co-Cr-Mo alloy and the same material with a diamond-like coatings (DLC) coating produced by applying the plasma assisted chemical vapor deposition (PACVD) method. The materials to be tested were selected because of their good biocompatibility and high resistance to corrosion and sliding wear. The coating structure was determined by applying scanning electron and atomic force microscopes. The tribological characteristics were obtained with a T-17 tester operating in the pin-on-plate configuration under lubricated friction conditions. The friction pair consisted of a cobalt-based alloy plate, or alternatively, a cobalt-based alloy plate with a diamond-like carbon coating, and an ultra-high molecular weight polyethylene (UHMWPE) pin. The model lubricant used in the tests was Ringer’s solution. The results indicated that the mechanisms of wear of the endoprosthesis elements were dependent mainly on the material used for the working surfaces in the friction joint. The wear resistance and friction coefficient of a cobalt-based alloy disc, or alternatively, a cobalt-based alloy disc with a diamond-like carbon coating, and an alumina ball were also determined by means of a T-01M tester during technically dry friction and lubrication in Ringer’s solution. The comparative analysis confirmed different tribological effectiveness of the cobalt-based alloy and DLC coatings during friction. K e y w o r d s: AFM, biotribology, coatings, diamond, EDS, friction, SEM, wear resistance

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人造关节用类金刚石炭涂层的性能

本文介绍了用于髋关节和膝关节内假体的材料的摩擦学测试结果。采用等离子体辅助化学气相沉积(PACVD)方法制备了类金刚石涂层(DLC)，并对Co-Cr-Mo合金及其同类材料进行了测试。所选择的测试材料具有良好的生物相容性和较高的耐腐蚀和抗滑动磨损性。采用扫描电子显微镜和原子力显微镜对涂层结构进行了测定。在润滑摩擦条件下，使用T-17试验机在销对板结构下工作，获得了摩擦学特性。该摩擦副由钴基合金板，或具有类金刚石碳涂层的钴基合金板和超高分子量聚乙烯(UHMWPE)引脚组成。试验中使用的模型润滑剂为林格氏溶液。结果表明，人工关节构件的磨损机制主要取决于摩擦关节工作面所用的材料。在林格氏溶液中进行技术干摩擦和润滑时，用T-01M测试仪测定了钴基合金圆盘或涂有类金刚石碳涂层的钴基合金圆盘和氧化铝球的耐磨性和摩擦系数。对比分析证实了钴基合金和DLC涂层在摩擦过程中的摩擦学效果不同。主要研究方向:原子力显微镜、生物摩擦学、涂层、金刚石、能谱、摩擦、扫描电镜、耐磨性

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来源期刊

Kovove Materialy-Metallic Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-METALLURGY & METALLURGICAL ENGINEERING

CiteScore

1.20

自引率

14.30%

发文量

审稿时长

3 months

期刊介绍： Kovove Materialy - Metallic Materials is dedicated to publishing original theoretical and experimental papers concerned with structural, nanostructured, and functional metallic and selected non-metallic materials. Emphasis is placed on those aspects of the science of materials that address: the relationship between the microstructure of materials and their properties, including mechanical, electrical, magnetic and chemical properties; the relationship between the microstructure of materials and the thermodynamics, kinetics and mechanisms of processes; the synthesis and processing of materials, with emphasis on microstructural mechanisms and control; advances in the characterization of the microstructure and properties of materials with experiments and models which help in understanding the properties of materials.