Development of High-Temperature Resistant Coatings for Aerospace Applications

Thesis Abstract

Abstract
High-temperature resistant coatings play a crucial role in enhancing the performance and durability of aerospace components subjected to extreme operating conditions. This thesis focuses on the development of advanced coatings with superior thermal stability and oxidation resistance for aerospace applications. The primary objective is to investigate novel coating materials and deposition techniques to address the challenges posed by high-temperature environments in aerospace engineering. The research begins with a comprehensive literature review to explore the current state-of-the-art in high-temperature coating technologies, highlighting their advantages and limitations. Various coating materials, such as ceramics, metallic alloys, and composites, are analyzed for their potential use in aerospace applications. Additionally, different deposition methods, including physical vapor deposition (PVD), chemical vapor deposition (CVD), and thermal spraying, are reviewed to identify the most suitable technique for achieving high-temperature resistance. In the subsequent chapters, the research methodology is detailed, covering the experimental design, material selection, coating deposition process, and characterization techniques. The experimental setup includes the selection of substrate materials, coating compositions, and deposition parameters to optimize the coating performance under extreme thermal conditions. Various analytical tools, such as scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermal gravimetric analysis (TGA), are utilized to evaluate the coating microstructure, phase composition, and thermal stability. The findings from the experimental investigations are presented and discussed in Chapter Four, highlighting the influence of different coating materials and deposition techniques on the thermal and oxidative properties of the coatings. The results demonstrate the successful development of high-temperature resistant coatings with enhanced performance characteristics, including improved oxidation resistance, thermal insulation, and mechanical properties. The discussion also addresses the challenges encountered during the coating development process and proposes potential solutions for further optimization. In the final chapter, the conclusions drawn from the research are summarized, emphasizing the significance of the developed coatings for aerospace applications. The key findings, contributions, and practical implications of the study are highlighted, along with recommendations for future research directions in the field of high-temperature coatings. Overall, this thesis provides valuable insights into the design and development of advanced coatings for enhancing the thermal protection and longevity of aerospace components operating in extreme environments.