HfSiW
metal· JVASP-147460· HfSiW
HfSiW is a ternary refractory metal alloy combining hafnium, silicon, and tungsten, designed for extreme-temperature and high-stress environments where conventional superalloys reach their limits. This material family is primarily explored in aerospace and materials research contexts for applications requiring exceptional thermal stability, oxidation resistance, and mechanical retention at temperatures beyond 1500°C, making it a candidate for next-generation hypersonic vehicle components and advanced propulsion systems.
hypersonic vehicle structuresultra-high-temperature turbine componentsrefractory coating systemsaerospace thermal protectionresearch & development applications
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
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.