Holmium Disk

Holmium Disk, composed of the rare-earth metal holmium, is valued for its unique magnetic, optical, and structural properties. It exhibits strong paramagnetism at higher temperatures, transitions to antiferromagnetism between ~20–133 K, and becomes ferromagnetic below 20 K, offering a wide spectrum of magnetic behaviors useful for research and specialized technologies. Its machinability and metallic stability allow integration into precision instruments, laser systems, and magnetic devices. Industries such as photonics, electronics, and materials research benefit from holmium disks in components requiring strong magnetic responses and robust structural integrity. Specific applications include active elements in thin-disk lasers, magnetic components in experimental physics setups, and dopant sources in advanced ceramic and ferrite systems. Research demonstrates its potential in high-temperature piezoelectric ceramics, high-frequency spinel ferrites, and as a host medium for luminescent compounds. In both industrial and scientific contexts, Holmium Disk is a versatile material, bridging fundamental research in magnetism with advanced applications in optics, electronics, and functional materials.

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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	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