TbCo5 — Properties & Data | MatWorld

TbCo5

Name: TbCo5
Brand: MatWorld

metal

· TbCo5

TbCo5 is an intermetallic compound composed of terbium and cobalt, belonging to the rare-earth transition-metal alloy family known for exceptional magnetic properties. This material is primarily of interest in permanent magnet and magnetic device applications, where the rare-earth terbium content provides high magnetic anisotropy and Curie temperature; it competes with or complements other rare-earth cobalt magnets (such as SmCo5) in specialized high-temperature and high-field magnetic applications. TbCo5 is used in select advanced technologies where superior thermal stability and magnetic performance justify the cost and complexity of rare-earth cobalt compounds, though broader adoption is limited compared to more conventional permanent magnet systems.

permanent magnetshigh-temperature magnetic devicesrare-earth magnet researchmagnetic actuation systemsaerospace and defense applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3321	lb/in³	DFT · OptB88vdW

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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)	6.820	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000421	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000422	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	8.507	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	8.770	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.1279	eV/atom	DFT · OptB88vdW
↳	-0.1524	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

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.

TbCo5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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