Nb4FeSi — Properties & Data | MatWorld

Nb4FeSi

metal

· Nb4FeSi

Nb4FeSi is an intermetallic compound combining niobium, iron, and silicon, belonging to the refractory metal intermetallic family. This material is primarily of research and developmental interest rather than widely commercialized, investigated for high-temperature structural applications where its combination of refractory elements offers potential for elevated-temperature strength and oxidation resistance. Engineers consider intermetallics like Nb4FeSi when designing components that must survive extreme thermal environments while maintaining stiffness, though processing challenges and limited availability currently restrict adoption to advanced aerospace and materials research contexts.

high-temperature structural componentsaerospace propulsion systemsrefractory metal researchelevated-temperature alloy developmentmaterials science experimentation

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	191.3	GPa	DFT
↳	191.3	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.04169	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)	0.3088	-	DFT · PBE
Shear Modulus(G)2 entries	83.80	GPa	DFT
↳	83.80	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)	7.718	kg/m³	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	0.0000968	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000955	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	8.310	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	8.253	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)	0.04080	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2676	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

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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.

Nb4FeSi

Mechanical Properties

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Other Properties

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