Erbium Disk

Erbium Disk is a precisely machined circular form of the rare-earth metal erbium, valued for its excellent optical, electronic, and magnetic properties. With a high melting point, notable corrosion resistance, and a unique 4f-electron configuration, erbium exhibits sharp optical emission lines, making it crucial in photonics and laser technology. Its disk geometry provides a stable and uniform surface ideal for experimental setups, thin-film deposition, and component fabrication. Industries such as telecommunications, advanced optics, and materials research benefit from erbium disks for applications including gain media in solid-state lasers, optical amplifiers for fiber communication systems, and magnetic cooling prototypes. Research increasingly exploits erbium’s long electron spin coherence times and compatibility with photonic bandgap materials, enabling advances in quantum communication and nanophotonics. In both industrial and laboratory contexts, Erbium Disk offers a robust, high-purity platform for precision engineering and high-performance optical devices.

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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	68
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f¹² 6s²
Valences shown	3
Atomic weight( amu )	167.26
Thermal neutron absorption cross-section( Barns )	160
Natural isotope distribution( Mass No./% )	166/ 33.4
Natural isotope distribution( Mass No./% )	162/ 0.1
Natural isotope distribution( Mass No./% )	168/ 27.0
Natural isotope distribution( Mass No./% )	170/ 15.0
Natural isotope distribution( Mass No./% )	167/ 22.9
Natural isotope distribution( Mass No./% )	164/ 1.6
Atomic radius - Goldschmidt( nm )	0.175
Ionisation potential( No./eV )	2/ 11.93
Ionisation potential( No./eV )	1/ 6.10

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.207
Bulk modulus( GPa )	41.8
Tensile modulus( GPa )	73.3
Hardness - Vickers( kgf mm⁻² )	70
Tensile strength( MPa )	292
Yield strength( MPa )	292

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	86@20@20°C
Temperature coefficient( K⁻¹ )	0.00201@0-100°C

Physical Properties

Element	Value
Boiling point( C )	2863
Density( gcm⁻³ )	9.051@20°C

Thermal Properties

Element	Value
Melting point( C )	1529
Latent heat of evaporation( J g⁻¹ )	1680
Latent heat of fusion( J g⁻¹ )	103
Specific heat( J K⁻¹ kg⁻¹ )	168@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	14.5@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	9.2@0-100°C