Synthesıs and Characterızatıon of Boron Nıtrıde Thın Fılms on Glass Substrate

Abstract

Antireflective coatings on glass have increasing applications, on g,g. cover glass Ot display glass. spectacle or window glazing's. Sol-gel derived rnœSOg•arouS coatings Can be tuned both in terms Of porosity and thitkness. thus allowing tuning of the refractive index. Additionally, the sol-gel approach is bottom-up. which facilitates easy upscaling. In the current work we present dip-coated mgsoporous Si01 coatings of different pore orventaticrt and film thickness prepared on microscope glass slides and Silicon T ho Silica coatings Were derived from (tetraorth0GilicatëS) mixed with ethanol and diluted HCI. Hexagonal and Boron nitride CBN), one of the high•tech products of boron, is a rnaterial with supericf properties such as refractory prcperties at high temperatures, high thermal shock resistance, high thermal conductivity. etectnca,l insulation. etierrtical and mechanical Stability. lubrication and easy process ability, Thanks to this features thin h-8N coatings find applications in several fields such as protective coating for oxidation, hurniditv and corrosion. In this study baron nitride thin films on glass substrates were manufactured frcm boric acid and urea soluti0$' by dap-coatang sol-gel technique, Different concentrations of mgtanaic boric acid solutions were studge•d to form BN thin film coatings on glass substrate. The impregnated thin films produced via this technique were heated to SSO at a rate of 51C/min for 2 h in a furnace with N2 atmosphere. Scanning electron microsccpy (Zeiss Supra 40VPJ was employed to investigate the BN coat.•ng morphologues. The phases of the