Sm11Co89
metal· Sm11Co89
Sm₁₁Co₈₉ is a rare-earth cobalt intermetallic compound belonging to the SmCo family of permanent magnets, characterized by a samarium-cobalt matrix that forms high-strength magnetic phases. This material is used primarily in high-performance permanent magnet applications where exceptional thermal stability and corrosion resistance are required, particularly in aerospace, military, and extreme-environment systems where conventional neodymium magnets would degrade. SmCo magnets like Sm₁₁Co₈₉ are valued over NdFeB alternatives in applications demanding operation above 150°C, superior coercivity retention at elevated temperatures, and resistance to oxidation without heavy coating requirements.
high-temperature permanent magnetsaerospace actuators and motorsmilitary defense systemsturbomachinery magnetic bearingsspace instruments and satellitesoil and gas downhole tools
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
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.