Ba2BiAu

Name: Ba2BiAu
Brand: MatWorld

metal

· Ba2BiAu

Ba2BiAu is an intermetallic compound combining barium, bismuth, and gold in a defined stoichiometric ratio, belonging to the class of metallic intermetallics. This is a research-stage material with limited established industrial use; it represents exploratory work in the intermetallic family where fixed composition and crystal structure enable tailored mechanical and electronic properties for specialized applications. Intermetallics like Ba2BiAu are investigated for potential use in high-temperature aerospace components, thermoelectric devices, and electronic materials where conventional alloys reach performance limits, though commercial adoption remains rare due to brittleness, cost, and processing challenges typical of this material class.

research compoundsintermetallic compoundsthermoelectric materialselectronic materialshigh-temperature exploratory applicationsmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	4,892.1	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	2,474.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2806	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6320	eV	DFT · OptB88vdW
↳	0.8250	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	29.56	-	DFT · OptB88vdW
↳	37.36 range 30.25–44.47median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	25.14	-	DFT · OptB88vdW
↳	17.77	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2300	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.2200	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00485	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00430	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-203.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	218.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	26.77	%	DFT · TBmBJ

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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.9768	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.

Ba2BiAu — Properties & Data | MatWorld

Ba2BiAu

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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