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Polyimide-Insulated Molybdenum Wire

Available Configurations

Properties common to all products in this list

Composition: Mo Form: Insulated Wire Material: Molybdenum CAS Number: 7439-98-7 Commodity: Metals Purity: 99.95% Conductor Diameter: 0.125mm Insulation: Polyimide Insulation Thickness: 0.012mm
Polyimide-Insulated Molybdenum Wire combines the high melting point, creep resistance, and excellent conductivity stability of molybdenum with the thermal endurance and dielectric strength of polyimide insulation. This configuration provides exceptional performance in high-vacuum systems, aerospace electronics, and furnace instrumentation where exposure to both high temperatures and mechanical stress is expected. The polyimide coating resists chemical degradation and abrasion while maintaining flexibility for routing through confined spaces. Applications include power leads in high-temperature furnaces, sensor wiring in propulsion systems, and durable interconnects in scientific instrumentation. Research uses involve high-temperature electrical stability testing, evaluation of insulation longevity under radiation, and development of precision resistive components. The combination of molybdenum’s refractory performance and polyimide’s insulation capability ensures stable, long-term functionality in extreme service conditions.
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Material Properties

Atomic Properties
Element Value
Atomic number 42
Crystal structure Body centred cubic
Electronic structure Kr 4d⁵ 5s¹
Valences shown 2, 3, 4, 5, 6
Atomic weight( amu ) 95.94
Thermal neutron absorption cross-section( Barns ) 2.65
Photo-electric work function( eV ) 4.2
Natural isotope distribution( Mass No./% ) 95/ 15.9
Natural isotope distribution( Mass No./% ) 96/ 16.7
Natural isotope distribution( Mass No./% ) 98/ 24.1
Natural isotope distribution( Mass No./% ) 97/ 9.6
Natural isotope distribution( Mass No./% ) 92/ 14.8
Natural isotope distribution( Mass No./% ) 94/ 9.3
Natural isotope distribution( Mass No./% ) 100/ 9.6
Atomic radius - Goldschmidt( nm ) 0.14
Ionisation potential( No./eV ) 2/ 16.15
Ionisation potential( No./eV ) 5/ 61.2
Ionisation potential( No./eV ) 68
Ionisation potential( No./eV ) 1/ 7.10
Ionisation potential( No./eV ) 3/ 27.2
Ionisation potential( No./eV ) 4/ 46.4
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.293
Poisson's ratio 0.293
Bulk modulus( GPa ) 261.2
Bulk modulus( GPa ) 261.2
Tensile modulus( GPa ) 324.8
Tensile modulus( GPa ) 324.8
Hardness - Vickers( kgf mm⁻² ) 250
Hardness - Vickers( kgf mm⁻² ) 200
Tensile strength( MPa ) 485-550
Tensile strength( MPa ) 620-690
Yield strength( MPa ) 550
Yield strength( MPa ) 415-450
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 5.7@20°C
Superconductivity critical temperature( K ) 0.915
Temperature coefficient( K⁻¹ ) 0.00435@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 1.45
Physical Properties
Element Value
Boiling point( C ) 4612
Density( gcm⁻³ ) 10.22@20°C
Thermal Properties
Element Value
Melting point( C ) 2617
Latent heat of evaporation( J g⁻¹ ) 6153
Latent heat of fusion( J g⁻¹ ) 290
Specific heat( J K⁻¹ kg⁻¹ ) 251@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 138@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 5.1@0-100°C
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Available Configurations

Properties common to all products in this list

Composition: Mo Form: Insulated Wire Material: Molybdenum CAS Number: 7439-98-7 Commodity: Metals Purity: 99.95% Conductor Diameter: 0.125mm Insulation: Polyimide Insulation Thickness: 0.012mm

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Tolerances

Insulated Wire
Conductor Diameter ±10%
Insulation Thickness Nominal
Length +5% / -1%