Abstract
The paper presents results of the phase composition investigations of coatings based on the Ti – Al – C system using an X-ray diffractometer and a synchrotron radiation source. A coating based on the Ti – Al – C system was deposited on molybdenum and titanium samples by cathodic-arc deposition from two single-component titanium and aluminum cathodes in a mixture of acetylene and argon. The results of the study of the phase composition showed that the formation of the Ti2AlC and Ti2C phases depends on the heat treatment mode. Using synchrotron radiation, the phase stability of the coating was studied when the sample was heated to 1500 °C in vacuum. It has been established that the coating after deposition has an amorphous structure, which crystallizes after annealing in vacuum with the formation of Ti2AlC, Ti2C phases and Ti – Al intermetallic compounds.
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