TaNi2

metal

· TaNi2

TaNi₂ is an intermetallic compound formed from tantalum and nickel, combining the high-temperature stability and corrosion resistance of refractory metals with the workability and cost-effectiveness of nickel-based systems. This material is primarily of research and developmental interest in aerospace, high-temperature applications, and advanced coatings where extreme thermal environments and chemical resistance are required. Engineers would consider TaNi₂ as an alternative to pure tantalum or conventional superalloys when weight efficiency, thermal cycling resistance, and oxidation protection at elevated temperatures are critical, though industrial adoption remains limited compared to established nickel superalloys.

high-temperature structural applicationsaerospace componentsrefractory coatingsresearch/experimental alloyscorrosion-resistant fastenersthermal barrier systems

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	31,019.8	ksi	DFT
↳	31,352.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3400	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	11,035.5	ksi	DFT
↳	12,705.3	ksi	DFT · OptB88vdW

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)	0.4514	lb/in³	DFT · OptB88vdW

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

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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	0.000395	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000366	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	10.06	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
↳	10.47	μV/K	DFT · OptB88vdW · n-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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3581	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.

TaNi2 — Properties & Data | MatWorld

TaNi2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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