Morphology and wetting properties of Al-Fe alloy films obtained under conditions of hyperrapid crystallization

Abstract

The comparative analysis of the surface microstructure and properties of Al-1.5 at.% Fe alloy films on glass substrates prepared by IBAD has been carried out by means of atomic force microscopy, scanning electron microscopy and the sessile drop method .Film deposition in IBAD was performed using a resonance ion source of vacuum arc plasma (vacuum chamber pressure of 10-2 Pa). The rate of "crystallization" (cooling of the cascades) was of the order of 1012-1013 K/s. The analysis of surface properties of the thin films obtained by passive and ion beam-assisted deposition regimes demonstrates the ability to control the structure phase composition and wettability of nanoscale surface structures of Al-Fe alloy films on glass substrates by varying the mode of IBAD.