Technical Data Sheet
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Iridium Sputtering Target

Iridium Sputtering Targets are part of our wide selection of sputtering targets and offer ultra-high purity iridium for thin film deposition. Iridium has excellent corrosion resistance and mechanical durability at high temperatures, as well as a very low electrical resistivity. These properties make it ideal for coating components in the electronics, aerospace and automotive industries where thermal stability and conductivity are critical.
Formula: Ir
Percentage Purity: 99.9%
Thickness: 1mm
Diameter: 25.4mm
CAS Number: 7439-88-5
UOM Code: 651-065-14
SKU: 1000125186
Product Code: IR00-ST-000100
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Technical Data Sheet
Safety Data Sheet

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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