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Niobium Oxide Films Deposited by Reactive Sputtering: Effect of Oxygen Flow Rate
Published on: September 28, 2019
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Progress in Niobium Oxide-Containing Coatings for Biomedical Applications: A Critical Review.
Mir Saman Safavi1,2, F C Walsh3, Livia Visai2,4
1Research Center for Advanced Materials, Faculty of Materials Engineering, Sahand University of Technology, 513351996 Tabriz, Iran.
ACS Omega
|March 31, 2022
Summary
Niobium oxide coatings on metallic implants enhance biocompatibility and performance. This review details deposition methods, properties, and biomedical applications, highlighting future research needs for advanced coatings.
Area of Science:
- Materials Science
- Biomedical Engineering
- Surface Engineering
Background:
- Niobium oxide coatings are crucial for improving the biocompatibility and functionality of metallic implants.
- Various metallic substrates like titanium alloys and stainless steels are used for these coatings.
- Current deposition techniques offer distinct advantages and limitations for biomedical applications.
Purpose of the Study:
- To review niobium oxide coating deposition techniques for metallic substrates.
- To analyze the properties and performance of these coatings in biomedical contexts.
- To identify critical research and development needs for future niobium oxide coatings.
Main Methods:
- Sputter deposition, sol-gel, anodizing, and wet plasma electrolytic oxidation are key deposition techniques discussed.
- Characterization includes analysis of thickness, morphology, microstructure, composition, phase, roughness, and hardness.
- Performance evaluation involves electrochemical corrosion, tribological wear, and cell viability/proliferation assays.
Main Results:
- Diverse properties of pure and modified niobium oxide coatings are presented.
- Coatings demonstrate varying corrosion resistance, wear characteristics, and biological responses.
- The study illustrates the impact of different deposition methods on coating properties.
Conclusions:
- Niobium oxide coatings offer significant potential for biomedical applications.
- Optimization of deposition techniques and coating properties is essential for enhanced performance.
- Further research is needed to advance the development and clinical translation of these coatings.
