Influence of surface preparation of implantable Ti6Al4V alloy on properties of Si-DLC and DLC carbon coatings

• Autorzy: Niedzielska Agata , Kowalska Milena , Szymański Witold , Niedzielski Piotr , Kaczorowski Witold , Grabarczyk Jacek

Identyfikatory

DOI

10.34821/eng.biomat.173.2025.11

• Języki publikacji: EN

Abstrakty

EN

In the case of devices intended for permanent implantation, such as hip, knee and shoulder replacements or dental implants, a highly developed surface promotes the osteointegration process. In contrast, removable implants require a mirror-like surface to prevent tissue ingrowth and allow for non-invasive removal. The objective of this study was to analyze the influence of substrate pretreatment and the properties of DLC (diamond-like carbon) and Si-DLC (silicon-doped diamond-like carbon) coatings, including surface roughness, adhesion, chemical structure, and corrosion resistance. Surface preparation methods such as sandblasting and polishing, commonly used by implant manufacturers, and RFPACVD plasma modification of Ti6Al4V, a popular titanium alloy in the medical field, were used in the study. The results obtained show that regardless of the pretreatment method used to determine the characteristic roughness of the samples, they can be effectively modified with carbon coatings, both with and without silicon doping. Using Raman spectroscopy, it was shown that the pretreatments applied prior to the coating preparation processes did not affect the chemical structure of the coatings prepared within the same group. However, the chemical structures of the DLC and Si-DLC coatings differed. The application of silicon doping in the carbon coatings improved their adhesion to the surface, as did the application of a surface pretreatment by an etching process. Regardless of the surface preparation method, the carbon coatings primarily reduced the electroactivity of the surface, while the silicon doping present in them had a positive effect in shifting the corrosion potential to more positive values.

Słowa kluczowe

EN

Ti6Al4V; DLC; Si-DLC; surface preparation of medical devices

PL

Ti6Al4V; DLC; Si-DLC; przygotowanie powierzchni urządzeń medycznych

• Wydawca: Polish Society for Biomaterials in Cracow
• Czasopismo: Engineering of Biomaterials
• Rocznik: 2025
• Tom: vol. 28, no. 173
• Strony: art. no. 11
• Opis fizyczny: Bibliogr. 11 poz., tab., wykr.

Twórcy

autor

Niedzielska Agata

• Institute of Material Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego St., 90-537 Lodz, Poland

• https://orcid.org/0009-0008-9173-8153

autor

Kowalska Milena

• Institute of Material Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego St., 90-537 Lodz, Poland

• https://orcid.org/0009-0004-5245-2241

autor

Szymański Witold

• Institute of Material Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego St., 90-537 Lodz, Poland

• https://orcid.org/0000-0002-4738-5847

autor

Niedzielski Piotr

• Institute of Material Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego St., 90-537 Lodz, Poland

• https://orcid.org/0000-0002-6966-9154

autor

Kaczorowski Witold

• Institute of Material Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego St., 90-537 Lodz, Poland

• https://orcid.org/0000-0001-7193-0473

autor

Grabarczyk Jacek

• Institute of Material Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, 1/15 Stefanowskiego St., 90-537 Lodz, Poland

• https://orcid.org/0000-0003-0155-2432

Bibliografia

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