Nb3Co4B7 — Properties & Data | MatWorld

Nb3Co4B7

metal

· JVASP-20976· Nb3Co4B7

Nb3Co4B7 is an experimental intermetallic compound combining niobium, cobalt, and boron—a material class under active research for high-temperature structural applications. This ternary boride falls within the family of refractory metal borides, which are valued for extreme hardness and thermal stability, though processing and brittleness remain significant challenges compared to conventional superalloys. The material's appeal lies in potential weight-efficiency and high-temperature capability, making it of interest to aerospace and energy researchers exploring next-generation engine materials and wear-resistant coatings.

experimental aerospace materialshigh-temperature intermetallicsrefractory coatingswear-resistant applicationsresearch metallurgy

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2685	lb/in³	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	0.0000729	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000792	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	10.15	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	10.86	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)	-0.5566	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.

Nb3Co4B7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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