Abstract

Titanium aluminide (Ti-Al) thin films were synthesized by ion-beam-enhanced deposition (IBED), where the films were prepared by depositing Ti and Al metal vapour under simultaneous bombardment with Ar ions in the energy range 2–20 keV. Experiments were undertaken using a compact IBED system with a bucket-type 2.45 GHz electron cyclotron resonance ion source and an electron beam evaporation source. Results of Rutherford backscattering spectrometry have suggested the presence of effective mixing between Al substrate and Ti film deposited under simultaneous bombardment with Ar ions. Glancing angle X-ray diffraction patterns showed that the phase structure of Ti-Al films was determined by both the Ar ion energy and the Ar/(Ti + Al) transport ratio.

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