AlAu

Name: AlAu
Brand: MatWorld

metal

· AlAu

AlAu is an intermetallic compound combining aluminum and gold, forming a metallic phase with ordered crystal structure. This material is primarily of research and specialized industrial interest rather than commodity use, valued in applications where the unique combination of gold's chemical inertness and aluminum's low density offers distinct advantages. AlAu appears in thin-film electronics, specialized coatings, and high-reliability interconnect systems where corrosion resistance, thermal stability, and precise phase control are critical.

microelectronics interconnectsthin-film coatingscorrosion-resistant contactshigh-reliability electronicsresearch metallurgythermal barrier applications

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)3 entries	15,094.1	ksi	DFT
↳	15,587.2	ksi	DFT · OptB88vdW
↳	15,094.1	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	3.562	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)	0.3630	-	DFT · PBE
Shear Modulus(G)3 entries	4,551.3	ksi	DFT
↳	-2,074	ksi	DFT · OptB88vdW
↳	4,551.3	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)	0.4011	lb/in³	DFT · OptB88vdW

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

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)	0.1974	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2547	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.

AlAu — Properties & Data | MatWorld

AlAu

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control