SiSiO2N

Silicon oxynitride (SiSiO₂N) is an advanced ceramic compound combining silicon, oxygen, and nitrogen phases, typically formed through controlled oxidation and nitridation of silicon or silicon-based precursors. This material family is primarily investigated for high-temperature structural applications and wear-resistant coatings, where the mixed oxide-nitride composition provides enhanced thermal stability, mechanical strength, and oxidation resistance compared to pure silicon nitride or silica. SiSiO₂N remains largely in the research and development phase but shows promise in aerospace, automotive, and tooling industries where extreme thermal cycling and chemical durability are critical.