Enhancement of mechanical properties of co-doped hydroxyapatite coatings on pre-treated Ti6Al4V

Date

2017-10-27

Author

Hacıoğlu, Tuğçe
Evis, Zafer
Tezcaner, Ayşen

Metadata

Show full item record

Item Usage Stats

258
views

0
downloads

Titanium and its alloys are commonly preferred implant materials for hard tissue applications. Today more than 4.4 million people have an internal fixation device and over 1.3 million people possess an artificial joint. Not only is there high demand for orthopedic surgeries for new patients every year, but there is also an even higher demand for patients who must receive revision surgeries. In order to enhance the properties of titanium based implant materials, different pretreatment and coating techniques are commonly used. Calcium-phosphate coatings are the most favorable method to upgrade the osteointegration properties of biomaterials. Porous structure of hydroxyapatite enables osteoblast attachment, proliferation and finally leads to osteointegration of the implant material. Biological performance of the coated implant can be improved by substitution of various ions. The goal of this study is to reduce implant rejection caused by the human body and increase the implants lifetime as this new generation orthopedic implants are produced. Mimicking the bone structure by coating metallic scaffold with co-doped Hydroxyapatite in effective way enable strong bone-implant integration. The aim is to prepare a new generation of coating on Ti6Al4V implant. Coated plates were evaluated in terms of their mechanical properties.

Subject Keywords

Materials science

URI

https://hdl.handle.net/11511/71486
http://indexive.com/User/3040/tugce-hacioglu

Conference Name

1st International Conference of Advanced Materials and Manufacturing Technologies (25 - 27 Ekim 2017 )

Collections

Department of Engineering Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Gentamicin release from a hydroxyapatite - Gelatin composite Yaylaoglu, MB; Korkusuz, Feza; Hasırcı, Vasıf Nejat (1997-05-01) This study was carried out to develop a calcium phosphate-gelatin composite implant that would mimic the structure and function of bone to fill voids or gaps as well as to release bioactive compounds like drugs, hormones, etc to help tissue repair. XDS analysis of the calcium phosphate prepared revealed a calcium to phosphorus ratio of 2.30, which is significantly higher than that found in hydroxyapatite. Crystallisation of calcium phosphate within gelatin membrane also yielded a similar composition. The di...
Efficient fabrication of ultrafine-grained 316L stainless steel surfaces for orthopaedic applications Tufan, Yiğithan; Efe, Mert; Ercan, Batur (Informa UK Limited, 2019-10-13) Commonly used severe plastic deformation (SPD) methods are suitable for fabrication of bulk nano and ultrafine-grained metals. Drawbacks of these methods include durability of dies, geometrical restrictions and reduced ductility of the products. In this study, two common machining techniques used in manufacturing of orthopaedic components, turning and milling, were applied on 316L stainless steel as surface SPD to refine the surface microstructures of the workpiece. Machining with optimised parameters resul...
Investigating the effects of hardening of aluminium alloys on equal-channel angular pressing-A finite-element study Karpuz, P.; Simsir, C.; Gür, Cemil Hakan (Elsevier BV, 2009-03-15) Equal-channel angular pressing (ECAP) is a promising severe plastic deformation method for production of ultrafine-grained bulk metals and alloys with considerably improved mechanical properties. In this study, numerical experiments were carried out to investigate the effect of strain hardening of aluminum alloys on the process performance of ECAP via finite element modeling. In the constitutive model, isothermal-plane strain, frictionless condition was assumed. The numerical results showed that strain hard...
Characterization and fatigue behavior of Ti-6Al-4V foams Aşık, Emin Erkan; Bor, Şakir; Department of Metallurgical and Materials Engineering (2012) Porous Ti-6Al-4V alloys are widely used in the biomedical applications for hard tissue implantation due to its biocompatibility and elastic modulus being close to that of bone. In this study, porous Ti-6Al-4V alloys were produced with a powder metallurgical process, space holder technique, where magnesium powders were utilized in order to generate porosities in the range of 50 to 70 vol. %. In the productions of Ti-6Al-4V foams, first, the spherical Ti-6Al-4V powders with an average size of 55 μm were mixed...
Characterization of ultra-fine grained steel samples produced by high pressure torsion via magnetic barkhausen noise analysis Bayramoğlu, Sadık; Gür, Cemil Hakan; Department of Metallurgical and Materials Engineering (2009) High Pressure Torsion (HPT) is one of the most widely used severe plastic deformation methods which enable to obtain a crack free ultra-fine grained bulk material with improved mechanical properties like increased strength and toughness. In the process, a disc shaped sample is pressed between two anvils and deformed via surface friction forces by rotating one of the anvils. The aim of this study is to nondestructively characterize the variations in the deformation uniformity of the severely deformed steel d...

Citation Formats

T. Hacıoğlu, Z. Evis, and A. Tezcaner, “Enhancement of mechanical properties of co-doped hydroxyapatite coatings on pre-treated Ti6Al4V,” presented at the 1st International Conference of Advanced Materials and Manufacturing Technologies (25 - 27 Ekim 2017 ), Karabük, Türkiye, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/71486.