Hf9CoW4
metal· JVASP-142256· Hf9CoW4
Hf9CoW4 is a refractory high-entropy alloy based on hafnium, cobalt, and tungsten, designed for extreme-temperature applications where conventional superalloys reach their performance limits. This material family is primarily investigated for aerospace propulsion systems, nuclear reactors, and ultra-high-temperature structural applications where superior creep resistance and thermal stability are critical; the multi-principal-element composition aims to achieve exceptional strength retention at temperatures where single-phase superalloys degrade, making it a candidate for next-generation engine turbines and hypersonic vehicle components.
high-temperature turbine bladesaerospace propulsion systemsnuclear reactor componentsrefractory applicationshypersonic vehicle structuresextreme-temperature research materials
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.