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Formula: Ho
Form: Powder
Material: Holmium
CAS Number: 7440-60-0
Commodity: Metals
Purity:
99.9%
Max Particle Size:
500μm
Hazard Pictogram:
GHS02
Holmium Powder is a highly magnetic rare earth metal powder available as part of our range of metal powders. With high permeability and moderate magnetization, it’s utilized in magnets as well as optical filters.
Flammable
Tolerances
Powder
| Mean Particle Size | Nominal | |
|---|---|---|
| Minimum Particle Size | Nominal | |
| Maximum Particle Size | Nominal | |
| Maximum Particle Size | Nominal | |
| Particle Size D10 | Nominal | |
| Particle Size D50 | Nominal | |
| Particle Size D90 | 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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