Advances and Challenges in Ultra‐High Temperature Materials for Aerospace Applications—A Review

Ultra‐high temperature materials (UHTMs) are essential for enduring extreme conditions of high temperatures, intense pressures, and aggressive chemical environments, particularly encountered in hypersonic flight and atmospheric reentry. This review categorizes UHTMs into carbon‐based materials, ceramic matrix composites, and metallic alloys, each tailored for specific aerospace applications. Significant advancements, such as ultra‐high temperature carbides with enhanced hardness and compositional versatility, are discussed alongside the need for high‐purity powders and improved synthesis techniques to fully understand their potential. Key challenges, including oxidation resistance, thermal shock resilience, and manufacturing complexities, are examined, emphasizing the necessity for continuous research. The review highlights the role of computational methods in discovering novel UHTMs and suggests entropy stabilization as a promising strategy for future innovations. By consolidating current progress and addressing existing gaps, this work aims to facilitate the development of next‐generation UHTMs, enhancing the performance and reliability of aerospace systems in extreme operational environments.