Rothammer B, Neusser K, Marian M, Bartz M, Krauß S, Böhm T, Thiele S, Merle B, Detsch R, Wartzack S (2021)
Publication Language: English
Publication Type: Journal article, Online publication
Publication year: 2021
Book Volume: 13
Pages Range: 1 - 23
Journal Issue: 12
URI: https://www.archiv.mfk.tf.fau.de?file=pubmfk_60c364643981f
Open Access Link: https://www.mdpi.com/2073-4360/13/12/1952
Diamond-like carbon (DLC) coatings have the potential to reduce implant wear and thus to contribute to avoiding premature failure and to increasing service life of total knee replacements (TKAs). This two-part study addresses the development of such coatings for ultrahigh molecular weight polyethylene (UHMWPE) tibial inlays as well as cobalt-chromium-molybdenum (CoCr) and titanium (Ti64) alloy femoral components. While a detailed characterization of the tribological behavior is the subject of part II, part I focusses on the deposition of pure (a-C:H) and tungsten-doped hydrogen-containing amorphous carbon coatings (a-C:H:W) and the detailed characterization of their chemical, cytological, mechanical and adhesion behavior. The coatings are fabricated by physical vapor deposition (PVD) and display typical DLC morphology and composition – as verified by focused ion beam scanning electron microscopy and Raman spectroscopy. Their roughness is higher than that of the plain substrates. Initial screening with contact angle and surface tension as well as in vitro testing by indirect and direct application indicate favorable cytocompatibility. The DLC coatings feature excellent mechanical properties with a substantial enhancement of indentation hardness and elastic modulus ratios. The adhesion of the coatings as determined in modified scratch tests can be considered as sufficient for the use in TKAs.
APA:
Rothammer, B., Neusser, K., Marian, M., Bartz, M., Krauß, S., Böhm, T.,... Wartzack, S. (2021). Amorphous Carbon Coatings for Total Knee Replacements—Part I: Deposition, Cytocompatibility, Chemical and Mechanical Properties. Polymers, 13(12), 1 - 23. https://doi.org/10.3390/polym13121952
MLA:
Rothammer, Benedict, et al. "Amorphous Carbon Coatings for Total Knee Replacements—Part I: Deposition, Cytocompatibility, Chemical and Mechanical Properties." Polymers 13.12 (2021): 1 - 23.
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