SiAu3

metal

· SiAu3

SiAu3 is an intermetallic compound composed of silicon and gold, belonging to the family of precious metal silicides. This material is primarily of research and specialized industrial interest rather than a commodity engineering material, valued for its unique combination of metallic and intermetallic properties that emerge from silicon-gold interactions. Applications span microelectronics bonding, high-temperature contacts, and advanced material research where the thermal stability and electrical conductivity of gold combined with silicon's semiconducting characteristics offer distinct advantages over conventional solders or contact materials.

microelectronics packaginghigh-temperature contactsgold-based brazingsemiconductor device assemblyresearch compoundsprecious metal alloys

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5229	lb/in³	—

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

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	—
↳	eV	—
Magnetic Moment(μB)	µB	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2029	eV/atom	—
Formation Energy(ΔHf)	0.2017	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.

SiAu3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control