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Systematic Characterization and Enhanced Corrosion Resistance of Novel Β-Type Ti-30zr Biomedical Alloys With Halloysite Nanotubes (Hnts) and Zirconia (zro2)-Reinforced Polylactic Acid (Pla) Matrix Coatings

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Date

2024

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier Ltd

Abstract

This study investigates synthesis, the in-vitro corrosion resistance and adhesion performance of PLA-based composite coatings reinforced with halloysite nanotubes (HNT) and zirconia (ZrO2) on beta-type Ti-30Zr-5Mo biomedical alloys. The coatings were synthesized using the sol-gel method and characterized for their surface morphology, chemical composition, and electrochemical properties. SEM analysis revealed the presence of micropores and cracks, particularly in HNT and HNT/ZrO2 bilayer coatings. XPS and Raman spectroscopy confirmed the successful integration of HNT and ZrO2 into the PLA matrix. The potentiodynamic polarization scans and electrochemical impedance spectroscopy (EIS) showed enhanced corrosion resistance for coatings containing HNT and ZrO2, with the HNT/ZrO2 bilayer demonstrating the best performance. Contact angle measurements indicated hydrophilic properties, crucial for bioactive surfaces. Overall, the study demonstrates that HNT and ZrO2 reinforcements in PLA coatings significantly improve the corrosion resistance and bioactivity of Ti-30Zr-5Mo alloys, making them promising candidates for biomedical applications. Details are compared and discussed in the text. © 2024 Elsevier Ltd

Description

Keywords

Halloysite Nanotubes, In-Vitro Corrosion, Pla, Sol-Gel, Ti-30Zr-5Mo Alloy, Zirconia

Turkish CoHE Thesis Center URL

WoS Q

Q2

Scopus Q

Q2

Source

Materials Today Communications

Volume

40

Issue

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