Co21Re2B6 — Properties & Data | MatWorld

Co21Re2B6

metal

· JVASP-26047· Co21Re2B6

Co21Re2B6 is a cobalt-rhenium boride intermetallic compound belonging to the family of refractory metal borides. This is a research-stage material explored primarily for its potential high-temperature strength and hardness characteristics, combining cobalt's established use in superalloys with rhenium's exceptional refractory properties and boron's hardening effects. Industrial deployment remains limited; the material is of interest to researchers investigating advanced wear-resistant coatings, high-temperature structural applications, and tool materials where conventional superalloys or ceramic composites may be insufficient.

high-temperature structural applicationsresearch boride compoundswear-resistant coatingscutting tool materialsrefractory applicationsaerospace research materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	9.781	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000180	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000197	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-17.91	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-18.77	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)	-0.1830	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

Export Control

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.

Co21Re2B6

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control