HfNb
metal· JVASP-111051· HfNb
HfNb is a refractory metal alloy combining hafnium and niobium, designed to operate at extreme temperatures where conventional superalloys reach their limits. This material is primarily investigated for aerospace and nuclear applications requiring exceptional thermal stability, oxidation resistance, and strength retention at temperatures exceeding 1000°C. Its appeal lies in maintaining structural integrity in ultra-high-temperature environments where traditional nickel- or cobalt-based superalloys degrade, though it remains largely experimental and cost-prohibitive for widespread commercial use compared to established refractory systems.
hypersonic vehicle structuresnuclear reactor componentshigh-temperature turbine applicationsextreme environment researchrefractory alloy developmentaerospace propulsion systems
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
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.