High-temperature operation refers to the study and development of materials, systems, and processes that can withstand and perform efficiently in extreme temperatures. This research area is crucial for various industries such as aerospace, energy, and manufacturing, where materials and components are exposed to high temperatures during operation. Researchers in this field aim to understand the behavior of materials at elevated temperatures, develop new materials with improved thermal stability and mechanical properties, and design systems and processes that can operate at high temperatures without degradation or failure. High-temperature operation research involves a multidisciplinary approach, combining materials science, thermodynamics, mechanical engineering, and other fields to address challenges related to thermal expansion, oxidation, creep, and other phenomena that occur at high temperatures. Overall, advancements in high-temperature operation research have led to the development of technologies and materials that enable efficient and reliable operation in extreme temperature conditions, ultimately leading to improved performance, longevity, and safety in various industries.