HfAu4
metal· JVASP-62168· HfAu4
HfAu₄ is an intermetallic compound combining hafnium and gold in a 1:4 atomic ratio, belonging to the family of refractory metal-precious metal intermetallics. This material is primarily of research and development interest rather than established in high-volume engineering applications; it combines hafnium's high melting point and strength with gold's chemical stability and density, making it relevant for extreme-environment and specialty applications where both thermal resistance and corrosion resistance are critical.
high-temperature aerospace componentsspecialized catalysis researchwear-resistant coatingsradiation environmentsjewelry/decorative metallurgymaterials research
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.