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Formula: Ir
Form: Coil
Material: Iridium
CAS Number: 7439-88-5
Commodity: Precious Metals
Purity:
99.9%
Temper:
As Rolled
Thickness:
0.05mm
Coil Width:
0.5mm
Iridium Coil combines extreme corrosion resistance, high melting point, and excellent mechanical strength in a rolled sheet form wound for efficient handling and application. Known for its outstanding stability in oxidizing environments and resistance to high-temperature degradation, iridium coils are employed in aerospace, catalysis, and advanced electronics. Industries use them for crucibles in crystal growth, thermal shields in space propulsion systems, and catalytic gauzes for ammonia oxidation. Specific technologies benefiting include high-temperature fuel cell research, aerospace turbine component testing, and advanced chemical reactor linings. Research explores the coil’s adaptability in nanostructured iridium catalyst fabrication, thermal cycling stability, and alloy development for extreme environments. The coiled form allows flexible cutting and shaping, making it suitable for both experimental and industrial-scale applications. Its unique combination of thermal resilience, chemical inertness, and formability makes iridium coils indispensable in pushing the limits of scientific and engineering innovation.
Tolerances
Coil
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
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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