Terbium Foil (Light Tight)

Terbium Foil Light Tight combines the magnetic and luminescent capabilities of terbium with a structure engineered to block all light transmission, making it ideal for optical isolation and shielding applications. Its light-tight quality is critical in sensitive optical devices, preventing signal interference while maintaining the functional properties of terbium. Industries such as precision optics, photonics, and laser engineering employ this foil in high-contrast imaging systems, light-blocking barriers in optical benches, and photonic device housings. Specific uses include optical calibration setups, magneto-optical isolators where light exclusion is essential, and controlled experimental environments. The combination of optical blocking and active material properties ensures this foil plays a unique role in research instrumentation and advanced device manufacturing.

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Properties

Reference & Citations

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Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	65
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f⁹ 6s²
Valences shown	3,4
Atomic weight( amu )	158.9254
Thermal neutron absorption cross-section( Barns )	30
Photo-electric work function( eV )	3
Atomic radius - Goldschmidt( nm )	0.177
Ionisation potential( No./eV )	2/ 11.52
Ionisation potential( No./eV )	1/ 5.85

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.265
Bulk modulus( GPa )	40.8
Tensile modulus( GPa )	57.5
Hardness - Vickers( kgf mm⁻² )	60

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	116@20@20°C

Physical Properties

Element	Value
Boiling point( C )	3123
Density( gcm⁻³ )	8.272@20°C

Thermal Properties

Element	Value
Melting point( C )	1356
Latent heat of evaporation( J g⁻¹ )	1840
Latent heat of fusion( J g⁻¹ )	103
Specific heat( J K⁻¹ kg⁻¹ )	183@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	11.1@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	7@0-100°C