Hf9W4S
metal· JVASP-119631· Hf9W4S
Hf9W4S is a hafnium-tungsten sulfide compound that belongs to the refractory metal sulfide family, combining two of the highest melting-point metallic elements with sulfur. This material is primarily of research and development interest rather than established industrial production, with potential applications in extreme-temperature environments and specialized coatings where conventional alloys reach their limits. Engineers would consider this material for ultra-high-temperature applications or as a matrix phase in composite systems, though its practical use remains limited by processing challenges and the relative maturity of competing refractory solutions.
high-temperature coatingsrefractory materials researchextreme environment protectionaerospace thermal barriersadvanced ceramics development
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.