Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/78425
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Type: Journal article
Title: Architectural design of diamond-like carbon coatings for long-lasting joint replacements
Author: Liu, Y.
Zhao, X.
Zhang, L.
Habibi, D.
Xie, Z.
Citation: Materials Science and Engineering C: Materials for Biological Applications, 2013; 33(5):2788-2794
Publisher: Elsevier Science BV
Issue Date: 2013
ISSN: 0928-4931
1873-0191
Statement of
Responsibility: 
Yujing Liu, Xiaoli Zhao, Lai-Chang Zhang, Daryoush Habibi, Zonghan Xie
Abstract: Surface engineering through the application of super-hard, low-friction coatings as a potential approach for increasing the durability of metal-on-metal replacements is attracting significant attention. In this study innovative design strategies are proposed for the development of diamond-like-carbon (DLC) coatings against the damage caused by wear particles on the joint replacements. Finite element modeling is used to analyze stress distributions induced by wear particles of different sizes in the newly-designed coating in comparison to its conventional monolithic counterpart. The critical roles of architectural design in regulating stress concentrations and suppressing crack initiation within the coatings is elucidated. Notably, the introduction of multilayer structure with graded modulus is effective in modifying the stress field and reducing the magnitude and size of stress concentrations in the DLC diamond-like-carbon coatings. The new design is expected to greatly improve the load-carrying ability of surface coatings on prosthetic implants, in addition to the provision of damage tolerance through crack arrest.
Keywords: Coatings
Stress
Finite element modeling
Crack
Joint replacements
Rights: © 2013 Elsevier B.V. All rights reserved.
DOI: 10.1016/j.msec.2013.02.047
Published version: http://dx.doi.org/10.1016/j.msec.2013.02.047
Appears in Collections:Aurora harvest
Materials Research Group publications
Mechanical Engineering publications

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