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Formula: Yb
Form: Disk
Material: Ytterbium
CAS Number: 7440-64-4
Commodity: Metals
Purity:
99%
Temper:
As Rolled
Ytterbium Disk from Goodfellow's range of foil products. This rare earth metal foil has a silvery lustre and is soft, malleable and ductile. With a high thermal and electrical conductivity, ytterbium foil is valued for its infrared transmission and low toxicity. Common applications include lasers, scintillators and phosphors. Ytterbium foil can also be used as a getter in vacuum tubes. Overall, this versatile foil has unique properties ideal for specialized optics and electronics.
Tolerances
Disk
| Thickness | >0.05mm | ±10% |
|---|---|---|
| Thickness | <0.01mm | ±25% |
| Thickness | 0.01mm - 0.05mm | ±15% |
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 70 |
| Crystal structure | Hexagonal close packed |
| Electronic structure | Xe 4f¹⁴ 6s² |
| Valences shown | 2,3 |
| Atomic weight( amu ) | 173.04 |
| Thermal neutron absorption cross-section( Barns ) | 37 |
| Natural isotope distribution( Mass No./% ) | 173/ 16.2 |
| Natural isotope distribution( Mass No./% ) | 174/ 31.7 |
| Natural isotope distribution( Mass No./% ) | 172/ 21.9 |
| Natural isotope distribution( Mass No./% ) | 168/ 0.1 |
| Natural isotope distribution( Mass No./% ) | 170/ 3.1 |
| Natural isotope distribution( Mass No./% ) | 171/ 14.3 |
| Natural isotope distribution( Mass No./% ) | 176/ 12.7 |
| Atomic radius - Goldschmidt( nm ) | 0.193 |
| Ionisation potential( No./eV ) | 3/ 25.2 |
| Ionisation potential( No./eV ) | 2/ 12.2 |
| Ionisation potential( No./eV ) | 1/ 6.25 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 25 |
| Material condition | Polycrystalline |
| Poisson's ratio | 0.28 |
| Bulk modulus( GPa ) | 13.5 |
| Tensile modulus( GPa ) | 17.8 |
| Tensile strength( MPa ) | 68.9 |
| Yield strength( MPa ) | 65.5 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 28@20@20°C |
| Temperature coefficient( K⁻¹ ) | 0.0013@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 1194 |
| Density( gcm⁻³ ) | 6.977@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 819 |
| Latent heat of evaporation( J g⁻¹ ) | 921 |
| Latent heat of fusion( J g⁻¹ ) | 53.2 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 145@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 32.9@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 25@0-100°C |