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Formula: Pt 70/Ir 30
Form: Foil (Light Tight)
Material: Platinum/Iridium
Commodity: Precious Metals
Thickness:
0.125mm
Light Tight:
Light Tight
Platinum Iridium Alloy Foil Light Tight (Pt70/Ir30) offers superior corrosion resistance, high mechanical strength, and exceptional thermal stability while being entirely free of pinholes, ensuring complete blockage of external light transmission. This precision thin format is used in optical masking, photonic device shielding, and protective barriers in high-vacuum or high-radiation environments. Industries utilize it for electron beam lithography masks, optical sensor housings, and shielding in spectroscopic instrumentation. Research uses include development of radiation-hardened components, light-sensitive chemical experiments, and fabrication of reflective barriers for laser systems. The combination of platinum’s noble metal resilience, iridium’s mechanical reinforcement, and the foil’s pinhole-free light-tight integrity ensures unmatched durability and optical isolation in advanced industrial and scientific systems.
Material Properties for Precious Metals
Mechanical Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | 18 |
| Modulus of elasticity( GPa ) | 236 |
| Hardness - Vickers( kgf mm⁻² ) | 280-285 |
| Tensile strength( MPa ) | 980-1100 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 35 |
| Temperature coefficient( K⁻¹ ) | 0.001 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 2153 |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 8.6@20-100°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 21.7 |
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