Ta2NbIr — Properties & Data | MatWorld

Ta2NbIr

metal

· JVASP-41034· Ta2NbIr

Ta2NbIr is a ternary refractory metal alloy combining tantalum, niobium, and iridium—three elements prized for their exceptional high-temperature stability and corrosion resistance. This composition represents a research-stage material in the family of high-entropy and multicomponent refractory alloys, designed to maintain strength and oxidation resistance at extreme temperatures well beyond conventional superalloys. While not yet widely deployed in production, Ta2NbIr targets applications where standard nickel-based superalloys fail, particularly in aerospace propulsion, thermal protection systems, and advanced energy conversion where material stability above 1600 °C becomes critical.

ultra-high-temperature structural applicationsaerospace engine componentsthermal protection systemsrefractory coatingsnext-generation power generationresearch and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5721	lb/in³	DFT · OptB88vdW

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

Filter by

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	0.00217	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00189	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-30.54	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-28.70	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.

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)	-0.4012	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.

Ta2NbIr

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control