Synthesis of coatings based on intermetallic titanium-aluminum by vacuum arc deposition

The methods for the synthesis of intermetallic coatings are investigated. The synthesis of coatings was carried out with two accelerators plasma in environments of Ar inert gas. The distribution ratio of the rate of growth of coatings at different points in the vacuum chamber is obtained. We investigated two different methods: simultaneous deposition of the plasma generated by a titanium and aluminum cathodes and layer by layer. Deposition of coatings were investigated by X-ray and optical methods. That the coatings consist of Ti, Al, intermetallic compounds (Ti-Al) is established. Analysis of the results of the phase composition of coatings on the samples showed that the percentage of the intermetallic compound in the coating affects: spatial location of samples in vaccum chamber, an additional bombardment of the substrate by ions of the reaction gas, modes of processing. An optimum mode of synthesis of intermetallic coatings is identified.