Department of Mechanical Engineering
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Browsing Department of Mechanical Engineering by Author "HACALOĞLU, TUĞÇE"
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Item DEVELOPMENT OF BORON NITRIDE COATINGS FOR SINGLE AND MULTI – LAYER FILMS FOR MECHANICAL AND BIOMEDICAL APPLICATIONS(2022-06-15) HACALOĞLU, TUĞÇE; Kaftanoğlu, BilginIn this thesis, Boron Nitride (BN) coatings are performed with the Physical Vapor Deposition (PVD) system by magnetron sputtering technique. D2 steel is used as a main substrate in all experiments. In addition, PVD magnetron sputtering system is supported by additional power source, Inductively Coupled Plasma (ICP), which is a newly developed technology that has not been used before. In this study, BN coatings are applied on medical instruments, multi-layered coatings and with applied ICP power. Different substrates are coated with BN by applying different parameters. As a result of obtained BN coatings, thickness of coating, the crystal structure of the obtained BN film, the nanohardness of the thin film, adhesion of the BN coating and the friction coefficient of the BN coated surface are measured. Furthermore, it is discovered that BN coated orthopedically implants are prevented biofilm formation and accelerated bone healing. The thickness of the BN coating on electroless nickel-plated aluminum substrate is measured as the thickest coating in multi-layer coatings. The aim of BN coatings performed with an ICP supported PVD magnetron sputtering system to enhance the ionization energy as the ICP power is increased. As a result, allotropes of BN are optimized.