Abstract
Abstract: The surface of implant materials is one of the most significant factors for controlling the interaction between biomaterials and bone tissues. Hence, enhancing the clinical performance of bio-implants is being widely focused worldwide. Herein, we report that nanostructured silver (Ag) coatings prepared on medical grade 316L stainless steel (SS) substrates are promising implant/surgical materials for orthopedic applications. Homogeneous nanoparticle-shaped silver thin films as a function of growth time (15 to 60 minutes) were developed at a temperature of 450 °C through aerosol-assisted chemical vapor deposition (AACVD) using a silver (I) acetate solution. All silver films were characterized using various surface and structural analysis techniques to confirm the phase and stoichiometric purity of the coating. Scanning electrochemical microscopy experiments were conducted to inspect the initial degradation of silver films on 316L SS substrates in simulated body fluid (SBF). Corrosion assessments in the SBF medium indicated that all the coated 316L SS substrates under study exhibited higher corrosion resistance than the uncoated ones; in particular, Ag films grown in 30 minutes showed the highest corrosion resistance among the other silver coatings produced under different conditions. The better corrosion performance of the Ag-30 sample was attributed to the dense, compact silver layer obtained in 30 minutes of deposition utilizing the AACVD technique. Graphic Abstract: [Figure not available: see fulltext.].
| Original language | English |
|---|---|
| Pages (from-to) | 4301-4312 |
| Number of pages | 12 |
| Journal | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
| Volume | 51 |
| Issue number | 8 |
| DOIs | |
| State | Published - 1 Aug 2020 |
Bibliographical note
Publisher Copyright:© 2020, The Minerals, Metals & Materials Society and ASM International.
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys