NbC — Properties & Data | MatWorld

NbC

Name: NbC
Brand: MatWorld

metal

· NbC

Niobium carbide (NbC) is a refractory ceramic compound combining niobium metal with carbon, forming a hard intermetallic phase. It is used primarily in cutting tool coatings, wear-resistant composite materials, and high-temperature structural applications where extreme hardness and thermal stability are required. Engineers select NbC for its exceptional hardness, chemical inertness, and ability to maintain strength at elevated temperatures, making it a preferred choice over softer carbides in demanding machining, mining, and aerospace applications.

cutting tool coatingswear-resistant compositeshigh-temperature ceramicshardface claddingrefractory applicationsaerospace thermal barriers

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)3 entries	300.1	GPa	DFT
↳	299.6	GPa	DFT · OptB88vdW
↳	300.1	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.2152	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2400	-	DFT · OptB88vdW
↳	0.2310	-	DFT · PBE
Shear Modulus(G)3 entries	196.8	GPa	DFT
↳	195.6	GPa	DFT · OptB88vdW
↳	196.8	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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.559	kg/m³	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	0.000243	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000246	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-4.760	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-4.790	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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.01450	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.5275	eV/atom	DFT · OptB88vdW
↳	-0.7328	eV/atom	Measured

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

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.

NbC

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