Samarium Disk

Samarium Disk delivers high magnetic anisotropy, thermal stability, and oxidation resistance in a compact circular form, making it well-suited for permanent magnet systems, magnetic sensing, and high-temperature magnetic assemblies. Its high Curie temperature and stability under demagnetizing forces allow use in precision motors, magnetic couplings, and compact actuator systems. Industries such as aerospace, automotive, and defense employ samarium disks in environments where strong magnetic performance is required despite thermal or mechanical stress. Research uses include magnetic property characterization, thin-film magnet integration, and magnetic refrigeration studies. The disk form’s uniform geometry ensures consistent performance and ease of integration into rotational or planar assemblies. This makes samarium disks indispensable in both advanced magnetic device engineering and fundamental magnetic materials research.

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Tolerance

Properties

Reference & Citations

Flammable

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	62
Crystal structure	Rhombohedral
Electronic structure	Xe 4f⁶ 6s²
Valences shown	2,3
Atomic weight( amu )	150.36
Thermal neutron absorption cross-section( Barns )	5820
Photo-electric work function( eV )	2.7
Natural isotope distribution( Mass No./% )	149/ 13.9
Natural isotope distribution( Mass No./% )	144/ 3.1
Natural isotope distribution( Mass No./% )	148/ 11.3
Natural isotope distribution( Mass No./% )	152/ 26.6
Natural isotope distribution( Mass No./% )	147/ 15.1
Natural isotope distribution( Mass No./% )	150/ 7.4
Natural isotope distribution( Mass No./% )	154/ 22.6
Atomic radius - Goldschmidt( nm )	0.18
Ionisation potential( No./eV )	1/ 5.63
Ionisation potential( No./eV )	2/ 11.07

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.31
Bulk modulus( GPa )	29.9
Tensile modulus( GPa )	34.1
Tensile strength( MPa )	124
Yield strength( MPa )	110

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	92@20@20°C
Temperature coefficient( K⁻¹ )	0.00148@0-100°C

Physical Properties

Element	Value
Boiling point( C )	1791
Density( gcm⁻³ )	7.536@20°C

Thermal Properties

Element	Value
Melting point( C )	1077
Latent heat of evaporation( J g⁻¹ )	1280
Latent heat of fusion( J g⁻¹ )	72.4
Specific heat( J K⁻¹ kg⁻¹ )	180@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	13.3@0-100°C