NbIr — Properties & Data | MatWorld

NbIr

metal

· NbIr

NbIr is an intermetallic compound composed of niobium and iridium, belonging to the family of refractory metal alloys. This material combines the high-temperature strength of niobium with the oxidation resistance and density of iridium, making it a candidate for extreme-environment applications where conventional superalloys reach their limits. NbIr is primarily of research and development interest rather than established high-volume production, with potential applications in aerospace propulsion systems, nuclear reactors, and other thermal-mechanical environments requiring both structural stability and corrosion resistance at elevated temperatures.

high-temperature structural applicationsrefractory alloys researchaerospace propulsion componentsnuclear reactor materialsoxidation-resistant coatingsultra-high-temperature composites

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	258.7	GPa	DFT
↳	263.4	GPa	DFT · OptB88vdW
↳	258.7	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.8223	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3200	-	DFT · OptB88vdW
↳	0.3209	-	DFT · PBE
Shear Modulus(G)3 entries	105.2	GPa	DFT
↳	113.6	GPa	DFT · OptB88vdW
↳	105.2	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)	14.58	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	0.0000506	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000479	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	1.390	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	1.343	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)	-0.5383	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.

NbIr

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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