Frictional Behaviour and Surface Topography Evolution of DLC-Coated Biomedical Alloys

Nečas D, Gelnar A, Rothammer B, Marian M, Ranuša M, Wartzack S, Vrbka M, Křupka I, Hartl M (2025)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2025

Journal

Biosurface and Biotribology The Institution of Engineering and Technology (IET) and Southwest Jiaotong University

Book Volume: 11

Pages Range: 1 - 14

Article Number: 11:e70004

Journal Issue: 1

URI: https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/bsb2.70004

DOI: 10.1049/bsb2.70004

Open Access Link: https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/bsb2.70004

Abstract

Advanced engineering coatings offer a promising solution to enhance the longevity and performance of medical biomaterials in orthopaedic implants. This study hypothesises that diamond-like carbon (DLC) coatings exhibit distinct frictional performance based on substrate and counterface material. Three different DLC coatings were tested using a pin-on-plate test in four material combinations. Virgin and DLC-coated CoCrMo and Ti6Al4V pins were tested under sliding against UHMWPE and glass plates with simulated body fluid lubrication. Results revealed that coating composition significantly impacts frictional performance, with silicon- and oxygen-doped coatings showing great potential to minimise friction. Surprisingly, reducing contact pressure had either a neutral or somewhat negative effect. Future investigations will focus on long-term testing and lubrication analyses of these material combinations.

Authors with CRIS profile

Benedict Rothammer Chair of Engineering Design (KTmfk) Sandro Wartzack Chair of Engineering Design (KTmfk)

Involved external institutions

Pontificia Universidad Católica de Chile CL Chile (CL) Brno University of Technology (BUT) / Vysoké učení technické v Brně (VUT) CZ Czech Republic (CZ)

How to cite

APA:

Nečas, D., Gelnar, A., Rothammer, B., Marian, M., Ranuša, M., Wartzack, S.,... Hartl, M. (2025). Frictional Behaviour and Surface Topography Evolution of DLC-Coated Biomedical Alloys. Biosurface and Biotribology, 11(1), 1 - 14. https://doi.org/10.1049/bsb2.70004

MLA:

Nečas, David, et al. "Frictional Behaviour and Surface Topography Evolution of DLC-Coated Biomedical Alloys." Biosurface and Biotribology 11.1 (2025): 1 - 14.

BibTeX: Download