NbCoSb — Properties & Data | MatWorld

NbCoSb

metal

· NbCoSb

NbCoSb is an intermetallic compound combining niobium, cobalt, and antimony, belonging to the half-Heusler alloy family. This is primarily a research material investigated for thermoelectric and high-temperature structural applications due to its favorable mechanical stiffness and thermal properties. While not yet widely deployed in production, half-Heusler compounds like NbCoSb are of interest to materials scientists for next-generation energy conversion and aerospace applications where conventional alloys reach their limits.

thermoelectric energy conversionhigh-temperature structural componentsheat-to-electricity devicesaerospace research materialssolid-state cooling systemsmaterials research (experimental)

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	155.9	GPa	DFT
↳	155.7	GPa	DFT · OptB88vdW
↳	155.9	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.2715	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3400	-	DFT · OptB88vdW
↳	0.3349	-	DFT · PBE
Shear Modulus(G)3 entries	57.88	GPa	DFT
↳	55.74	GPa	DFT · OptB88vdW
↳	57.88	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)	8.450	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	0.00145	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00153	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-24.28	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-24.95	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)	0.03230	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1925	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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NbCoSb

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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