Hf2 W4
semiconductor· Hf2 W4
Hf₂W₄ is a refractory intermetallic compound combining hafnium and tungsten, belonging to the class of transition metal compounds designed for extreme-temperature applications. This material is primarily of research and developmental interest rather than mainstream industrial production, with potential applications in ultra-high-temperature structural applications where conventional superalloys reach their limits. The hafnium-tungsten system is notable for investigating refractory phase stability and oxidation resistance in aerospace and energy systems, though commercial adoption remains limited pending further refinement of processing routes and cost reduction.
ultra-high-temperature structural componentsaerospace propulsion researchrefractory coatings developmenthypersonic vehicle materialsnuclear reactor environmentsadvanced materials research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
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.