Sc4 Si2 B4 Ir10

Sc₄Si₂B₄Ir₁₀ is an experimental intermetallic ceramic composite combining scandium, silicon, boron, and iridium phases, representing a high-entropy or multi-principal-element approach to ultra-high-temperature ceramics. This material family is under active research rather than established in production, with potential applications in extreme thermal and oxidation environments where conventional superalloys and monolithic ceramics reach their limits. Engineers would consider such compositions for extreme-performance niches where the combination of refractory elements and iridium's oxidation resistance offers advantages over single-phase alternatives, though fabrication complexity and cost remain significant barriers to adoption.