NbCrSi
metal· NbCrSi
NbCrSi is a refractory metal alloy combining niobium, chromium, and silicon, designed for extreme-temperature applications where conventional superalloys reach their limits. This material system is primarily investigated for high-temperature structural applications in aerospace and power generation, where its refractory base provides oxidation resistance and thermal stability beyond nickel or cobalt superalloys. Engineers consider NbCrSi when operating temperatures approach or exceed 1200°C, particularly in environments requiring both mechanical strength and oxidation resistance without the cost penalties of single-crystal nickel superalloys.
turbine engine componentshypersonic vehicle structureshigh-temperature combustor linersrefractory coatings and compositesspace propulsion systemsadvanced heat-exchanger cores
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 30,812.5 | ksi | — | ||
| ↳ | 30,812.5 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.2479 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν) | 0.2632 | - | — | ||
Shear Modulus(G)2 entries | 17,329.8 | ksi | — | ||
| ↳ | 17,329.8 | 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
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2430 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 1.237 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.02880 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4215 | 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.