HfAlAu2

Name: HfAlAu2
Brand: MatWorld

metal

· HfAlAu2

HfAlAu2 is an intermetallic compound combining hafnium, aluminum, and gold in a defined stoichiometric ratio, belonging to the family of high-temperature metallic compounds. This material is primarily of research and development interest rather than established production use, with potential applications in aerospace and high-temperature structural applications where the combined properties of refractory hafnium and gold's stability could provide advantages in extreme environments. The material's notable characteristics stem from its intermetallic nature—offering potential for high stiffness and thermal stability—making it a candidate for advanced applications where conventional superalloys or refractory metals may fall short, though practical manufacturing and cost considerations currently limit widespread industrial adoption.

aerospace researchhigh-temperature structural applicationsrefractory materials developmentintermetallic compound researchthermal barrier applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	21,223.4	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4300	-	DFT · OptB88vdW
Shear Modulus(G)	3,666.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4985	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000229	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000334	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-1.850	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-2.240	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.03100	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.5253	eV/atom	DFT · OptB88vdW
↳	-0.6260	eV/atom	Measured

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

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.

HfAlAu2 — Properties & Data | MatWorld

HfAlAu2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control