Hard and thick ceramic coatings to protect titanium implants from wear
Patients with metallic implants can develop sensitisation to immunologically active elements like chromium, cobalt or nickel as well as debris particles due to implant wear.
In this project, we tested the approach of using a hard and thick penetration seal (PS) ceramic coatings to protect titanium implants from wear, and avoid sensitisation and foreign body problems. We showed that process parameters strongly influence coating porosity and, as a consequence, its hardness.
SEM image of the PS-coating. Left: Top view, right cross-section. 
3 cm titanium specimen with a ceramic, wear-resistant coating applied using vacuum plasma spraying (VPS). The concentric wear marks result from tribological pin-on-disk tests conducted to characterise the friction and wear behaviour of the coating. Source: Joël Karlin. 
3-cm titanium sample with a ceramic, wear-resistant VPS coating for pin-on-disk, scratch, and film thickness analyses. Source: Joël Karlin.
Project details
- Type
- Research project
- Research field
- Functional materials and surfaces
- School
- FHNW School of Life Sciences / Institute for Medical Engineering and Medical Informatics
- Partners
- ANAXAM
Orchid Orthopedics Switzerland GmbH
Empa
ZHAW - Funding
- Hightech Zentrum Aargau
KTI/CTI
Publications
Chang, C.S.T., Wyss, M., Andrzejewski, M., Darut, G., Graf, L., Novak, V., Olbinado, M., Erpel, S., Vogel, A., Bode, S., de Wild, M., & Salito, A. (2024). Microstructures, phase and mechanical characterisation of Al2O3-ZrO2-TiO2 coating produced by atmospheric plasma spraying. Open Ceramics,20, 100698.
R. Burger, A. Carmona, N.P.M. Casati, C.S.T. Chang, C. Grünzweig, M. Olbinado, A. Salito, F. Schuler, M. de Wild. Post-treatment of wear-resistant implant coatings. Swiss Nanoscience Institute Annual Report 2021.
F. Schuler, C. Grünzweig, C. Chan Sin Ting, N. Casati, M. Olbinado, A. Carmona, M. de Wild. Post-treatment of wear protection layer. eCM Periodical, 2021, Collection 2; 2021; [MEET THE EXPERT] Abstracts (page P14).
R. Burger, A. Carmona, N.P.M. Casati, C.S.T. Chang, M. de Wild, C. Grünzweig, M. Olbinado, A. Salito, and F. Schuler. Post-treatment of wear-resistant implant coatings. Swiss Nanoscience Institute Annual Report 2020.
A ceramic coating for titanium implants. Swiss Nanoscience Annual Report 2020 Supplement.
de Wild, M., Vogt, N., Wozniak, K., & Salito, A. (2016). Biocompatible wear-resistant thick ceramic coating. Current Directions in Biomedical Engineering,2(1), 31–34.
Contact
Prof. Dr. Michael de Wild
- Phone
- +41 61 228 56 49
- michael.dewild@fhnw.ch
Further projects
NanoPED
- Institute
- Institute for Medical Engineering and Medical Informatics
- Research field
- Functional materials and surfaces
Palatal patch for laser tissue gum surgery
- Institute
- Institute for Chemistry and Bioanalytics, Institute of Product and Production Engineering, Institute for Pharma Technology and Biotechnology, Institute for Medical Engineering and Medical Informatics
- Research field
- Functional materials and surfaces, nanoLab