ErAl7Au3 — Properties & Data | MatWorld

ErAl7Au3

metal

· JVASP-22759· ErAl7Au3

ErAl7Au3 is a ternary intermetallic compound combining erbium, aluminum, and gold—a rare-earth metallic system studied primarily in materials research rather than established industrial production. This material family is of interest for high-temperature applications and specialized alloy development, where the erbium addition can provide creep resistance and the gold component may enhance certain mechanical or electronic properties. Engineers would consider this material in advanced aerospace, electronics, or research contexts where rare-earth intermetallics offer performance advantages over conventional binary alloys, though practical application remains limited pending further development and cost evaluation.

rare-earth intermetallic researchhigh-temperature structural applicationsaerospace advanced alloyscreep-resistant compositionselectronic device materialsexperimental alloy development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2854	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000688	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000660	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	19.81	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	19.00	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5404	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.

ErAl7Au3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control