Nb5SiSn2
metal· Nb5SiSn2
Nb5SiSn2 is a niobium-tin silicide intermetallic compound belonging to the high-temperature refractory metal alloy family. This material is primarily of research and developmental interest for ultra-high-temperature applications where conventional superalloys reach their performance limits, particularly in aerospace propulsion and thermal protection systems. The niobium-silicon-tin system offers potential for elevated-temperature strength retention and oxidation resistance, though engineering adoption remains limited compared to established Ni-base or Mo-base superalloys.
hypersonic vehicle structuresrocket nozzle componentshigh-temperature coatings researchrefractory metal matrix compositesthermal protection systems (TPS)
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | — | ksi | — | — | |
| ↳ | — | ksi | — | — | |
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | — | |
Elastic Anisotropy(AU) | — | - | — | — | |
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Shear Modulus(G)2 entries | — | ksi | — | — | |
| ↳ | — | ksi | — | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
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.