ZrSi2

Zirconium disilicide (ZrSi₂) is an intermetallic compound that belongs to the refractory metal silicide family, valued for its high-temperature strength and oxidation resistance. It is primarily used in extreme thermal environments where conventional alloys fail, particularly in aerospace propulsion systems, high-temperature structural applications, and ceramic matrix composites. Engineers select ZrSi₂ when weight efficiency and thermal performance are critical, as it maintains significant stiffness at temperatures exceeding 1000°C while offering superior oxidation protection compared to many competing silicides—though its brittleness at lower temperatures typically restricts it to specialized high-heat applications rather than general-purpose engineering.