Anti-scratch AlMgB$_{14}$ Gorilla$^{\circledR}$ Glass coating

Hard aluminum–magnesium boride (BAM) films were fabricated onto Corning$^{\circledR}$ Gorilla$^{\circledR}$ Glass by radio-frequency magnetron sputtering of a single stoichiometric AlMgB$_{14}$ target. BAM films exhibit a Vickers hardness from 10 to 30 GPa and a Young’s modulus from 80 to 160 GPa depending on applied loading forces. Deposited hard coating increases the critical load at which glass substrate cracks. The adhesion energy of BAM films on Gorilla$^{\circledR}$ Glass is 6.4 J/m$^2$.