Monolithic cubic TiAlN thin films are essential in industrial applications for tools due to their high thermal stability and are increasingly used in electronic and optical devices.
The study reveals how temperature influences thermal conductivity, electrical resistivity, and optical reflectance of these coatings from room temperature to 1400 °C, linking changes to their structural and chemical properties.
Notable findings include a significant increase in thermal conductivity (threefold) and a drastic reduction in electrical resistivity (by an order of magnitude), along with a color change from grey to reddish-golden due to structural transformations during heating.