ZnAu3 — Properties & Data | MatWorld

ZnAu3

metal

· ZnAu3

ZnAu3 is an intermetallic compound composed of zinc and gold in a 1:3 atomic ratio, belonging to the family of precious metal intermetallics. This material combines gold's corrosion resistance and chemical inertness with zinc's lower cost, resulting in a hard, brittle metallic phase typically investigated for specialized applications where wear resistance and thermal stability are prioritized. While not widely used in high-volume production, ZnAu3 and similar gold-zinc phases appear in research contexts for electrical contacts, decorative coatings, and brazing alloy development, where the material's high density and stiffness can be leveraged despite limited ductility.

electrical contacts and connectorsresearch intermetallicsbrazing filler metalswear-resistant coatingshigh-reliability electronicsspecialty alloy development

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	18,075	ksi	DFT
↳	18,075	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.3897	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)	0.3917	-	DFT · PBE
Shear Modulus(G)2 entries	4,217.9	ksi	DFT
↳	4,217.9	ksi	DFT · PBE

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
Density(ρ)	0.5730	lb/in³	DFT · OptB88vdW

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Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02650	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1280	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.

ZnAu3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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