SmCo4Cu

metal

· JVASP-106745· SmCo4Cu

SmCo4Cu is a samarium-cobalt-based intermetallic compound belonging to the rare-earth permanent magnet family, with copper as a minor alloying addition. This material is primarily developed for high-temperature magnetic applications where conventional rare-earth magnets lose performance, offering enhanced thermal stability and corrosion resistance compared to standard SmCo5 compositions. Its use is concentrated in aerospace, defense, and industrial motor applications requiring magnets that maintain strength at elevated temperatures and in harsh chemical environments.

high-temperature permanent magnetsaerospace actuators and sensorsmilitary guidance systemshigh-speed electric motorsdownhole oil & gas equipmentprecision instrumentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3211	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	4.895	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01000	eV/atom	—
Formation Energy(ΔHf)	-0.1101	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.

SmCo4Cu

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control