AlAu3

metal

· JVASP-126870· AlAu3

AlAu₃ is an intermetallic compound composed of aluminum and gold in a 1:3 atomic ratio, belonging to the family of precious-metal intermetallics. This material is primarily of research and specialized industrial interest rather than a commodity alloy, valued for its unique combination of high density and the inherent properties of gold while maintaining structural definition through the intermetallic phase. Applications are limited but include high-reliability electronics, aerospace thermal management, and dental/medical devices where corrosion resistance, biocompatibility, and density are critical; its use is typically driven by performance requirements that justify the material and manufacturing cost rather than by widespread adoption.

high-reliability electronics packagingaerospace thermal interfacesdental implants and restorationsmedical device coatingsresearch metallurgycorrosion-resistant contacts

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	14.81	kg/m³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.06870	eV/atom	—
Formation Energy(ΔHf)	-0.1909	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.

AlAu3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control