Scientists at Tomsk Polytechnic University (TPU) have made a breakthrough in developing high-entropy ceramic coatings capable of resisting oxidation in extremely aggressive environments. Their approach, based on hafnium and zirconium carbides alloyed with aluminium, chromium and tantalum, achieved excellent resistance to oxidative degradation at 1,100 °C – a critical improvement for potential use in aviation and space applications. Ceramic materials based on zirconium and hafnium carbides are known for their exceptional mechanical and thermal stability. According to the researchers, the high-entropy design significantly improves ablation resistance, thermal conductivity and phase stability across a wide temperature range. The next step involves evaluating double oxide–carbide high-entropy systems, with a focus on structural integrity, thermal stability and long-term performance under extreme conditions.