Samarium Foil (Light Tight)

Samarium Foil Light Tight offers the same rare-earth magnetic and corrosion-resistant qualities as standard samarium foil but with a microstructure engineered to block all external light transmission. This property is essential for applications in high-vacuum optics, photonics research, and sensitive detector systems. Industries such as aerospace instrumentation, optical metrology, and quantum technology employ light-tight samarium foil for optical shielding, spectrometer housings, and light-blocking barriers in experimental setups. Specific applications include preventing stray light interference in spectroscopy, shielding detectors in particle physics experiments, and protecting optical sensors in aerospace systems. In research, this form enables studies requiring both magnetic control and complete optical isolation. Its combination of magnetic performance, corrosion resistance, and light-blocking capability makes it a critical material in advanced optical and magnetic systems.

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Properties

Reference & Citations

Flammable

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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