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Ruthenium Thin Film Disk (Mylar® Backing)

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Properties common to all products in this list

Composition: Ru Form: Thin Film Material: Ruthenium CAS Number: 7440-18-8 Commodity: Precious Metals Purity: 99.9% Support: Permanent Mylar® 3.5µm
Ruthenium Thin Film Disk offers high catalytic activity, exceptional corrosion resistance, and excellent electrical conductivity in a precisely machined circular format coated with a uniform thin film. This combination supports applications in microelectronics, electrocatalysis, and optical devices. Industries employ these disks in microcircuit fabrication, reference electrodes, and high-durability sensor interfaces. Research applications include thin-layer electrochemical studies, catalytic reaction kinetics, and surface modification experiments. The disk format ensures uniform electrical properties and facilitates reproducible testing or device integration, while the thin film structure maximizes active surface area without compromising structural integrity. Its ability to combine precision geometry with ruthenium’s robust chemical and electrical properties makes it a key enabler in high-performance scientific and industrial systems.
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Material Properties

Atomic Properties
Element Value
Atomic number 44
Crystal structure Hexagonal close packed
Electronic structure Kr 4d⁷ 5s¹
Valences shown 0,1,2,3,4,5,6,7,8
Atomic weight( amu ) 101.07
Thermal neutron absorption cross-section( Barns ) 3
Photo-electric work function( eV ) 4.71
Natural isotope distribution( Mass No./% ) 99/ 12.7
Natural isotope distribution( Mass No./% ) 96/ 5.5
Natural isotope distribution( Mass No./% ) 104/ 18.6
Natural isotope distribution( Mass No./% ) 98/ 1.9
Natural isotope distribution( Mass No./% ) 101/ 17.1
Natural isotope distribution( Mass No./% ) 100/ 12.6
Natural isotope distribution( Mass No./% ) 102/ 31.6
Atomic radius - Goldschmidt( nm ) 0.134
Ionisation potential( No./eV ) 2/ 16.8
Ionisation potential( No./eV ) 3/ 28.5
Ionisation potential( No./eV ) 1/ 7.36
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.25
Poisson's ratio 0.25
Bulk modulus( GPa ) 286
Bulk modulus( GPa ) 286
Tensile modulus( GPa ) 432
Tensile modulus( GPa ) 432
Hardness - Vickers( kgf mm⁻² ) 750
Hardness - Vickers( kgf mm⁻² ) 350
Tensile strength( MPa ) 495
Yield strength( MPa ) 372
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 7.7@20°C
Superconductivity critical temperature( K ) 0.49
Temperature coefficient( K⁻¹ ) 0.0041@0-100
Physical Properties
Element Value
Boiling point( C ) 3900
Density( gcm⁻³ ) 12.2@20
Thermal Properties
Element Value
Melting point( C ) 2310
Latent heat of evaporation( J g⁻¹ ) 5610
Latent heat of fusion( J g⁻¹ ) 252
Specific heat( J K⁻¹ kg⁻¹ ) 238@20°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 117@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 9.6@0-100°C
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Available Configurations

Properties common to all products in this list

Composition: Ru Form: Thin Film Material: Ruthenium CAS Number: 7440-18-8 Commodity: Precious Metals Purity: 99.9% Support: Permanent Mylar® 3.5µm

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Tolerances

Thin Film
Thickness ±30%

Tolerances

Disk
Diameter ±20%