Holmium Pellets

Formula: Ho

Form: Pellet/Lump

Material: Holmium

CAS Number: 7440-60-0

Commodity: Metals

Purity: 99%

Maximum Lump Size: 25mm

Hazard Pictogram: GHS02

Holmium Pellets are a form of rare earth metal produced by Goodfellow. With a high magnetic permeability and moderate Curie temperature, these pellets are ideal for use in magnets and magnetic sensors. The high neutron absorption cross-section also makes holmium suitable for control rods in nuclear reactors. As part of Goodfellow's extensive range of rare earth metals, these holmium pellets enable a wide variety of advanced engineering applications.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

Flammable

each

Tolerances

Pellet/Lump

Maximum Lump Size		Nominal

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

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Holmium Pellets

Tolerances

Material Properties for Metals