Nb4 Si4 Ir4
semiconductor· Nb4 Si4 Ir4
Nb₄Si₄Ir₄ is a quaternary intermetallic compound combining niobium, silicon, and iridium in equal atomic proportions, belonging to the refractory metal silicide family. This material is primarily of research and developmental interest for ultra-high-temperature applications where exceptional thermal stability and oxidation resistance are required beyond the capability of conventional superalloys. The addition of iridium to niobium-silicon systems is explored to enhance fracture toughness and creep resistance, making it a candidate for next-generation aerospace propulsion systems and power generation at extreme temperatures where nickel-based superalloys reach their limits.
hypersonic propulsion componentshigh-temperature turbine applicationsaerospace engine researchrefractory structural materialsextreme environment testing
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — | eV/atom | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.