Technical Data Sheet
Safety Data Sheet

Tungsten Sputtering Target

Tungsten Trioxide Sputtering Target Disc is a range of discs offered by Goodfellow within their selection of sputtering targets. With 19 variations available, these discs are made of tungsten trioxide, an inorganic compound known for its semiconducting and photochromatic properties. The discs can be used as sputtering targets, which are materials that are bombarded to dislodge atoms and deposit thin films onto substrates. Tungsten trioxide films deposited this way find uses in gas sensors, smart windows, and other optoelectronic devices that leverage its unique optical properties.
Formula: W
Percentage Purity: 99.999%
Thickness: 6mm
Diameter: 75mm
CAS Number: 7440-33-7
UOM Code: 789-151-45
SKU: 1000218612
Product Code: W-00-ST-000205
No Minimum order Despatch of products in stock within 48 hours Free technical support *Free delivery worldwide
  • Buy 5 for €682.08 each and save 19%
  • Buy 10 for €623.14 each and save 26%

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Technical Data Sheet
Safety Data Sheet

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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 74
Crystal structure Body centred cubic
Electronic structure Xe 4f¹⁴ 5d⁴ 6s²
Valences shown 2,3,4,5,6
Atomic weight( amu ) 183.85
Thermal neutron absorption cross-section( Barns ) 18.5
Photo-electric work function( eV ) 4.55
Natural isotope distribution( Mass No./% ) 183/ 14.3
Natural isotope distribution( Mass No./% ) 182/ 26.3
Natural isotope distribution( Mass No./% ) 186/ 28.6
Natural isotope distribution( Mass No./% ) 180/ 0.1
Natural isotope distribution( Mass No./% ) 184/ 30.7
Atomic radius - Goldschmidt( nm ) 0.141
Ionisation potential( No./eV ) 1/ 7.98
Ionisation potential( No./eV ) 2/ 17.7
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.28
Poisson's ratio 0.28
Bulk modulus( GPa ) 311
Bulk modulus( GPa ) 311
Tensile modulus( GPa ) 411
Tensile modulus( GPa ) 411
Hardness - Vickers( kgf mm⁻² ) 360
Hardness - Vickers( kgf mm⁻² ) 500
Tensile strength( MPa ) 550-620
Tensile strength( MPa ) 1920
Yield strength( MPa ) 550
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 5.4@20@20°C
Superconductivity critical temperature( K ) 0.0154
Temperature coefficient( K⁻¹ ) 0.0048@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 1.12
Physical Properties
Element Value
Boiling point( C ) 5660
Density( gcm⁻³ ) 19.3@20°C
Thermal Properties
Element Value
Melting point( C ) 3410
Latent heat of evaporation( J g⁻¹ ) 4009
Latent heat of fusion( J g⁻¹ ) 192
Specific heat( J K⁻¹ kg⁻¹ ) 133@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 173@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 4.5@0-100°C
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