Research Article
Microstructure, hardness and biocompatibility properties of ceramic based coatings produced by plasma spray method
Serkan Islak*,1, Nuray Emin2, Cihan Özorak3 and Husain R.H. Hraam4
1Department of Mechanical Engineering, Kastamonu University, Kastamonu, Turkey
2Department of Biomedical Engineering, Kastamonu University, Kastamonu, Turkey
3Department of Metallurgical and Materials Engineering, Kastamonu University, Kastamonu, Turkey
4Institute of Science, Kastamonu University, Kastamonu, Turkey
Keywords
Abstract
Ceramic coatings;
Biocompatibility;
Microstructure
Ceramic materials with excellent mechanical,
corrosion and abrasion resistance is set in terms of features such as
biomaterials. In this study, Al2O3, Al2O3-40%
TiO2, ZrO2 - 8% Y2O3 and Cr2O3-2%
TiO2 ceramic coatings were produced by plasma spraying on AISI 316L
stainless steel surface. It was aimed to investigate microstructure, hardness
and biocompatibility properties of coatings. Scanning electron microscope (SEM)
analysis and X-ray diffraction (XRD) phase analysis were used to determine the
microstructure and phase composition properties. The biocompatibility
properties of coatings have been tried to be determined by analyzing
cytotoxicity and viability. The SEM images show that the ceramic coatings are
connected in accordance with the substrate. The XRD analyzes show the formation
of binary and ternary complex phases in the coating layers. Cr2O3-2%
TiO2 coating has the highest hardness in the coating layers.
Biocompatibility tests reveal the most compatible and consistent results in
terms of cytotoxicity were obtained with Al2O3-40% TiO2
coating.
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