TbCo5

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:
siimperial
PropertyValueUnitConditionsSource
Density(ρ)
0.3321
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
6.820
µB—
Seebeck Coefficient(S)
8.507
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)2 entries
-0.1524
eV/atom—
↳
-0.1279
eV/atom—
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.
Verified Unverified Low confidence (<80%) Link to source

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 — Properties & Data | MatWorld