Abstract
The deposition of innovative glass–ceramic composition (i.e. RKKP) coatings by Pulsed Lased Deposition (PLD) technique is reported. RKKP was synthesised following two methodologies: melt-processing and sol–gel, the latter being particularly suitable to tailor the compositional range. The PLD advantage with respect to other deposition techniques is the congruent transfer of the target composition to the coating. The physico-chemical properties of films were investigated by Scanning Electron and Atomic Force Microscopies, Fourier Transform Infrared Spectroscopy, Angular and Energy Dispersive X-ray Diffraction, and Vickers microhardness. The deposition performed at 12J/cm2 and 500°C allows to prepare crystalline films with the composition that replicates rather well that of the initial targets. The 0.6μm thin melt-processing RKKP films, possessing the hardness of 25GPa, and the 4.3μm thick sol–gel films with the hardness of 17GPa were obtained.
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