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CHARACTERISATION OF BORON NITRIDE COATINGS

BROWSE_DETAIL_CREATION_DATE: 29-07-2016

BROWSE_DETAIL_IDENTIFIER_SECTION

BROWSE_DETAIL_TYPE: Thesis

BROWSE_DETAIL_SUB_TYPE: Masters

BROWSE_DETAIL_PUBLISH_STATE: Unpublished

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: TECHNOLOGY, Manufactures, Metal manufactures. Metalworking,

BROWSE_DETAIL_CREATORS: Hacaloğlu, Tuğçe (Author),

BROWSE_DETAIL_CONTRIBUTERS: Kaftanoğlu, Bilgin (Thesis Advisor),

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Boron Nitride, Coating, Physical Vapor Deposition, BN allotropes, magnetron sputtering 


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In this study, Boron Nitride (BN) coating is deposited by the magnetron sputtering - physical vapor deposition (PVD) technique.D2 steel substrates are coated with different allotropes of BNand are usedas substrates for characterisations. Single crystal grown hexagonal BN (h-BN) target is used and isconnected to a radio frequency power supply. Another powersupply connected to the substrate holder is used for substrate bias.Also, during this study the effects of the BN coating by using various coating parameters are investigated. The thickness of the resulting coatings, friction coefficient, wear resistance are evaluated for mechanical properties and also nanohardness, and scratch behavior are measured. In addition, Fourier Transform Infrared Spectroscopy for crystal structure analysis (FTIR) technique is used for crystal structure of BN films. The results of the investigations show that not only h-BN phases are obtained but also various different BN allotropes such as c-BN, w-BN, r-BN, t-BN, e-BN, a-BN are obtained. Since there is more than one phase, surface properties are investigated for each case.Positive effects on the hardness and thickness are observed.Correlations between coating parameters and coating properties are discussed. 


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