HfTaV4
metal· JVASP-99988· HfTaV4
HfTaV4 is a refractory metal alloy combining hafnium, tantalum, and vanadium, belonging to the family of high-temperature transition metal systems. This material is primarily of research and developmental interest, targeted at extreme-environment applications where conventional superalloys reach their thermal limits. The hafnium-tantalum-vanadium system is explored for aerospace and advanced energy applications demanding superior high-temperature strength and oxidation resistance, though industrial adoption remains limited compared to established nickel-based or titanium-based alternatives.
high-temperature aerospace structuresrefractory metal researchhypersonic vehicle componentsadvanced reactor materialsultra-high-temperature applicationsexperimental aerospace testing
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.