The article extensively explores protective thermal barrier coating technologies for gas turbines, emphasizing their significance in enhancing turbine efficiency and longevity. The authors conducted experiments involving the application of protective coatings on gas turbine blades of various purposes using electron beam physical vapor deposition of alloys and ceramics. The research revealed that thermal barrier coatings contribute to raising gas temperatures ahead of the turbine or increasing the durability of the blades, leading to enhanced efficiency and fuel savings. Optimal parameters for different types of coatings, including layer composition and structure, were established to improve heat resistance and overall coating longevity. Laboratory and industrial electron beam facilities for coating application are described in detail, ensuring optimal conditions for material melting and application. Special attention is given to the advanced L-9 setup, which distinguishes itself from previous ones by utilizing a cold cathode for electron beam heaters, enhancing stability and durability. Additionally, the article details the technical peculiarities of the installations, their design, and capabilities for applying various types of coatings. Information regarding the control systems for these installations and the operational principles of the state-of-the-art setup, applicable for depositing different protective coatings, including novel micro-layered silicide coatings, is presented. With this comprehensive overview of technologies and installations, the article showcases the direction of research and development in the field of protective thermal barrier coatings, aiming to augment the reliability and effectiveness of gas turbines.