TiAlAu — Properties & Data | MatWorld

TiAlAu

metal

· TiAlAu

TiAlAu is a ternary intermetallic alloy combining titanium, aluminum, and gold, representing an experimental composition in the titanium-aluminum family of materials. This material is primarily of research interest, as it combines the lightweight and high-strength characteristics of titanium-aluminum intermetallics with gold's exceptional corrosion resistance and biocompatibility—a combination not typically found in commercial alloys. The inclusion of gold makes TiAlAu a candidate for specialized applications where corrosion immunity and biological tolerance are critical alongside mechanical performance, though its use remains limited to investigation in academic and advanced materials development settings.

biomedical implants (experimental)corrosion-resistant coatingsaerospace fasteners (research)high-temperature wear resistancedental prosthetics (investigational)chemical processing equipment

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	128.1	GPa	DFT
↳	135.6	GPa	DFT · OptB88vdW
↳	128.1	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.2157	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3200	-	DFT · OptB88vdW
↳	0.3044	-	DFT · PBE
Shear Modulus(G)3 entries	57.63	GPa	DFT
↳	55.89	GPa	DFT · OptB88vdW
↳	57.63	GPa	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.

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Property	Value	Unit	Conditions	Source
Density(ρ)	9.146	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00208	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00202	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	30.16	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	29.60	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)	-0.5160	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

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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.

TiAlAu

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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