Bi4Au — Properties & Data | MatWorld

Bi4Au

Name: Bi4Au
Brand: MatWorld

metal

· JVASP-101068· Bi4Au

Bi₄Au is an intermetallic compound in the bismuth-gold binary system, representing a specific stoichiometric phase that combines a brittle bismuth-rich matrix with gold. This material is primarily of research and specialized industrial interest rather than a commodity structural material; it appears in fundamental materials science studies of binary phase diagrams and intermetallic behavior, with potential applications in thermoelectric materials, specialized soldering systems, and gold-bismuth brazing alloys where the phase stability and melting characteristics are exploited.

thermoelectric researchphase diagram studiesspecialty soldering and brazinghigh-temperature contact materialsintermetallic research compoundsbismuth-gold systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	10.12	kg/m³	DFT · OptB88vdW

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Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2690	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.2557	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Bi4Au

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control