Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces

Abstract This paper presents the tribological properties and bioactivity of nanostructured hydroxyapatite (HA) from biowaste sources and coated onto Ti-6Al-4V substrates using a novel pack cementation method. The process introduced HA pillars/nanorods on the surfaces of Ti-6Al-4V to enhance their os...

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Main Authors: Sarah Akua Osafo, Tabiri Asumadu, Desmond Klenam, Precious Etinosa, John David Obayemi, Benjamin Agyei-Tuffour, Abu Yaya, David Dodoo-Arhin, Stanley Chijioke Eluu, Wole Soboyejo
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-03253-8
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author Sarah Akua Osafo
Tabiri Asumadu
Desmond Klenam
Precious Etinosa
John David Obayemi
Benjamin Agyei-Tuffour
Abu Yaya
David Dodoo-Arhin
Stanley Chijioke Eluu
Wole Soboyejo
author_facet Sarah Akua Osafo
Tabiri Asumadu
Desmond Klenam
Precious Etinosa
John David Obayemi
Benjamin Agyei-Tuffour
Abu Yaya
David Dodoo-Arhin
Stanley Chijioke Eluu
Wole Soboyejo
author_sort Sarah Akua Osafo
collection DOAJ
description Abstract This paper presents the tribological properties and bioactivity of nanostructured hydroxyapatite (HA) from biowaste sources and coated onto Ti-6Al-4V substrates using a novel pack cementation method. The process introduced HA pillars/nanorods on the surfaces of Ti-6Al-4V to enhance their osseointegration for dental implants. The mechanical and tribological properties were studied with nanoindentation, and pin-on-disk techniques, following the microstructural characterization of the coatings with atomic force microscopy, X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and energy dispersive x-ray spectroscopy. The study also examines the surface bioactivity and elucidates the underlying friction and wear mechanisms of the HA-coated and annealed Ti-6Al-4V surface. The study results show a bone bonding capacity of the biowaste-derived HA-coated substrate with improved hardness and tribological properties. The implications of the study are discussed for the development of nano-structured HA-coated Ti-6Al-4V for dental implants with improved osseointegration for dental and biomedical applications.
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spelling doaj-art-b408df02bd9e451f96bd90d1d3e9ef032025-08-20T03:22:12ZengNature PortfolioScientific Reports2045-23222025-05-0115112410.1038/s41598-025-03253-8Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfacesSarah Akua Osafo0Tabiri Asumadu1Desmond Klenam2Precious Etinosa3John David Obayemi4Benjamin Agyei-Tuffour5Abu Yaya6David Dodoo-Arhin7Stanley Chijioke Eluu8Wole Soboyejo9Department of Materials Science and Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of GhanaDepartment of Mechanical Engineering, Program in Materials Science and Engineering, Worcester Polytechnic InstituteDepartment of Mechanical Engineering, Program in Materials Science and Engineering, Worcester Polytechnic InstituteDepartment of Mechanical Engineering, Program in Materials Science and Engineering, Worcester Polytechnic InstituteDepartment of Mechanical Engineering, Program in Materials Science and Engineering, Worcester Polytechnic InstituteDepartment of Materials Science and Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of GhanaDepartment of Materials Science and Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of GhanaDepartment of Materials Science and Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of GhanaDepartment of Biotechnology, Ebonyi State UniversityDepartment of Mechanical Engineering, Program in Materials Science and Engineering, Worcester Polytechnic InstituteAbstract This paper presents the tribological properties and bioactivity of nanostructured hydroxyapatite (HA) from biowaste sources and coated onto Ti-6Al-4V substrates using a novel pack cementation method. The process introduced HA pillars/nanorods on the surfaces of Ti-6Al-4V to enhance their osseointegration for dental implants. The mechanical and tribological properties were studied with nanoindentation, and pin-on-disk techniques, following the microstructural characterization of the coatings with atomic force microscopy, X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and energy dispersive x-ray spectroscopy. The study also examines the surface bioactivity and elucidates the underlying friction and wear mechanisms of the HA-coated and annealed Ti-6Al-4V surface. The study results show a bone bonding capacity of the biowaste-derived HA-coated substrate with improved hardness and tribological properties. The implications of the study are discussed for the development of nano-structured HA-coated Ti-6Al-4V for dental implants with improved osseointegration for dental and biomedical applications.https://doi.org/10.1038/s41598-025-03253-8BioactivityOsseointegrationSurface modificationTitanium alloysDental implantsWear resistance
spellingShingle Sarah Akua Osafo
Tabiri Asumadu
Desmond Klenam
Precious Etinosa
John David Obayemi
Benjamin Agyei-Tuffour
Abu Yaya
David Dodoo-Arhin
Stanley Chijioke Eluu
Wole Soboyejo
Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces
Scientific Reports
Bioactivity
Osseointegration
Surface modification
Titanium alloys
Dental implants
Wear resistance
title Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces
title_full Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces
title_fullStr Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces
title_full_unstemmed Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces
title_short Tribological properties of hydroxyapatite-coated nanorods on Ti-6Al-4V surfaces
title_sort tribological properties of hydroxyapatite coated nanorods on ti 6al 4v surfaces
topic Bioactivity
Osseointegration
Surface modification
Titanium alloys
Dental implants
Wear resistance
url https://doi.org/10.1038/s41598-025-03253-8
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