Al1 Cu1 Au2

semiconductor

· Al1 Cu1 Au2

Al₁Cu₁Au₂ is an intermetallic compound combining aluminum, copper, and gold in a fixed stoichiometric ratio, representing a research-phase material in the aluminum-copper-gold ternary system. This composition falls within the broader class of precious-metal-containing intermetallics, which are typically investigated for high-temperature stability, wear resistance, or specialized electronic applications where gold's properties (conductivity, corrosion resistance, biocompatibility) can be leveraged alongside aluminum's light weight and copper's thermal/electrical characteristics. While not a commodity engineering material, intermetallics in this family are explored in aerospace, electronics, and biomedical research contexts where the cost of gold can be justified by performance or reliability demands in extreme or demanding environments.

research intermetallicshigh-temperature contactswear-resistant coatingsaerospace bonding/brazingbiomedical implant researchelectronic interconnects

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02360	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2630	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.

Al1 Cu1 Au2

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control