SmCo2 — Properties & Data | MatWorld

SmCo2

Name: SmCo2
Brand: MatWorld

metal

· SmCo2

SmCo2 is a samarium-cobalt intermetallic compound belonging to the rare-earth permanent magnet family, characterized by high magnetic anisotropy and strong magnetic coupling between samarium and cobalt atoms. This material is widely used in high-temperature magnetic applications, including aerospace actuators, oil-well logging tools, and precision instrumentation, where its magnetic properties remain stable beyond the operating limits of ferrite or neodymium magnets. Engineers select SmCo2-based systems when thermal stability, corrosion resistance, and reliability in extreme environments outweigh cost considerations, making it essential for applications in jet engines, satellite systems, and deep-subsea equipment.

high-temperature permanent magnetsaerospace actuators and sensorsdeep-well geothermal applicationsmilitary avionics and guidance systemsmedical imaging equipment (specialized magnets)extreme-environment positioning systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	126.0	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3700	-	DFT · OptB88vdW
Shear Modulus(G)	35.68	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	9.534	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.000	eV	Measured
↳	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	2.844	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000872	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000873	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	25.96	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	25.93	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1453	eV/atom	DFT · OptB88vdW

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.

SmCo2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control