✦ LIBER ✦

Micro/nanoscale mechanical and tribological characterization of SiC for orthopedic applications

✍ Scribed by Xiaodong Li; Xinnan Wang; Robert Bondokov; Julie Morris; Yuehuei H. An; Tangali S. Sudarshan

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 474 KB
Volume: 72B
Category: Article
ISSN: 1552-4973
DOI: 10.1002/jbm.b.30168

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✦ Synopsis

Abstract

Micro/nanomechanical and tribological characterization of SiC has been carried out. For comparison, measurements on SiC, CoCrMo, Ti‐6Al‐4V, and stainless steel have also been made. Hardness and elastic modulus of these materials were measured by nanoindentation using a nanoindenter. The nanoindentation impressions were imaged using an atomic force microscope (AFM). Scratch, friction, and wear properties were measured using an accelerated microtribometer. Scratch and wear damages were studied using a scanning electron microscope (SEM). It is found that SiC exhibits higher hardness, elastic modulus, scratch resistance as well as lower friction with fewer and smaller debris particles compared to other materials. These results show that SiC possesses superior mechanical and tribological properties that make it an ideal material for use in orthopedic and other biomedical applications. © 2004 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 72B: 353–361, 2005

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