HoCo4B
metal· JVASP-151275· HoCo4B
HoCo4B is a hard magnetic intermetallic compound based on holmium and cobalt with boron, belonging to the rare-earth transition-metal family of permanent magnets. This material is primarily of research interest for high-performance magnetic applications requiring exceptional coercivity and energy product, though it remains less commercialized than established rare-earth magnets like NdFeB. Engineers would consider HoCo4B when designing advanced magnetic systems that demand superior performance at elevated temperatures or in specialized aerospace and defense applications where conventional permanent magnets reach their limits.
permanent magnetshigh-temperature magnetic devicesaerospace actuatorsresearch magnetsspecialized sensing systemsdefense applications
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | eV/atom | — | — |
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.