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Formula: Ir
Form: Thin Film
Material: Iridium
CAS Number: 7439-88-5
Commodity: Precious Metals
Purity:
99.9%
Thickness:
0.1µm
Area Density:
224µg/cm²
Support:
Permanent Mylar® 3.5µm
Iridium Thin Film Disk is part of Goodfellow's range of thin films. These disks are made of an iridium alloy deposited on Mylar® polyester film. Iridium is valued for its high reflectivity and chemical inertness. These thin film disks can be used as reflective coatings in scientific instruments like telescopes or as protective layers in semiconductor devices. The range of thicknesses allows tuning of optical and electrical properties for different applications.
Tolerances
Thin Film
| Thickness | ±30% |
|---|
Disk
| Diameter | ±20% |
|---|
Material Properties for Precious Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 77 |
| Crystal structure | Face centred cubic |
| Electronic structure | Xe 4f¹⁴ 5d⁷ 6s² |
| Valences shown | 3, 4 |
| Atomic weight( amu ) | 192.22 |
| Thermal neutron absorption cross-section( Barns ) | 425 |
| Photo-electric work function( eV ) | 4.6 |
| Natural isotope distribution( Mass No./% ) | 191/ 37.3 |
| Natural isotope distribution( Mass No./% ) | 193/ 62.7 |
| Atomic radius - Goldschmidt( nm ) | 0.135 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Soft |
| Material condition | Hard |
| Poisson's ratio | 0.26 |
| Poisson's ratio | 0.26 |
| Bulk modulus( GPa ) | 371 |
| Bulk modulus( GPa ) | 371 |
| Tensile modulus( GPa ) | 528 |
| Tensile modulus( GPa ) | 528 |
| Hardness - Vickers( kgf mm⁻² ) | 650 |
| Hardness - Vickers( kgf mm⁻² ) | 200-300 |
| Tensile strength( MPa ) | 550-1100 |
| Tensile strength( MPa ) | 1200 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 5.1@20@20°C |
| Superconductivity critical temperature( K ) | 0.11 |
| Temperature coefficient( K⁻¹ ) | 0.0045@0-100°C |
| Thermal emf against Pt (cold 0C - hot 100C)( mV ) | 0.65 |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 4130 |
| Density( gcm⁻³ ) | 22.4@20°C |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2410 |
| Latent heat of evaporation( J g⁻¹ ) | 3186 |
| Latent heat of fusion( J g⁻¹ ) | 135 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 133@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 147@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 6.8@0-100°C |
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Percentage Purity: 95%
Thickness: 0.5µm
Length 1: 25mm
Length 2: 25mm
Area Density: 334.5µg/cm²
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Vanadium Thin Film Disk Formula: V
Percentage Purity: 99.8%
Thickness: 0.1µm
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Percentage Purity: 99.99%
Thickness: 0.25µm
Length 1: 25mm
Length 2: 25mm
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Magnesium Thin Film Sizes Formula: Mg
Percentage Purity: 99.9%
Thickness: 1µm
Length 1: 25mm
Length 2: 25mm
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Zirconium Thin Film Disk Formula: Zr
Percentage Purity: 99.2%
Thickness: 0.075µm
Diameter: 10mm
Support: Permanent Mylar® 0.5µm
CAS Number: 7440-67-7
UOM Code: 498-645-15
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Molybdenum Thin Film Disk Formula: Mo
Percentage Purity: 99.9%
Thickness: 0.1µm
Diameter: 10mm
Area Density: 92.4µg/cm²
Support: Permanent Mylar® 3.5µm
CAS Number: 7439-98-7
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