Holmium Foil

Holmium Foil is a rare-earth metal material prized for its exceptional optical, magnetic, and structural properties in thin-sheet form. Its high magnetic moment and distinctive absorption bands in the visible and infrared spectra make it a valuable resource for optics, electronics, and advanced material research. The foil form enables uniform integration into experimental setups, sensors, and photonic devices. Industries such as photonics, materials science, and high-performance electronics utilize holmium foil in spectroscopic calibration, thin-disk laser systems, and as a dopant source for luminescent ceramics and functional oxides. Specific applications include active elements in optical filters, components in piezoelectric ceramic systems, and preparation of holmium-doped oxides for high-k dielectric devices. Research has highlighted holmium’s role in enhancing fluorescence, improving high-temperature piezoelectric performance, and advancing the stability of electronic device materials. In both scientific and industrial contexts, Holmium Foil is a versatile and enabling material, contributing to innovation in optics, functional ceramics, and high-reliability electronic technologies.

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Tolerance

Properties

Reference & Citations

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Tolerances

Foil

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

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	67
Crystal structure	Hexagonal close packed
Electronic structure	Xe 4f¹¹ 6s²
Valences shown	3
Atomic weight( amu )	164.9304
Thermal neutron absorption cross-section( Barns )	65
Atomic radius - Goldschmidt( nm )	0.176
Ionisation potential( No./eV )	2/ 11.80
Ionisation potential( No./eV )	1/ 6.02

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.225
Bulk modulus( GPa )	40.5
Tensile modulus( GPa )	66.9
Hardness - Vickers( kgf mm⁻² )	60
Tensile strength( MPa )	262
Yield strength( MPa )	221

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	94@20@20°C
Temperature coefficient( K⁻¹ )	0.00171@0-100°C

Physical Properties

Element	Value
Boiling point( C )	2695
Density( gcm⁻³ )	8.803@20°C

Thermal Properties

Element	Value
Melting point( C )	1474
Latent heat of evaporation( J g⁻¹ )	1695
Latent heat of fusion( J g⁻¹ )	104
Specific heat( J K⁻¹ kg⁻¹ )	165@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	16.2@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	9.5@0-400°C