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Formula: Nb
Form: Insulated Wire
Material: Niobium
CAS Number: 7440-03-1
Commodity: Metals
Insulation: PTFE (Polytetrafluoroethylene)

PTFE Niobium Insulated Wire

PTFE (Polytetrafluoroethylene) Niobium Insulated Wire is a highly specialized wire produced by Goodfellow. With 21 variations available, this wire stands out for its insulation made of polytetrafluoroethylene (PTFE) surrounding a niobium core. PTFE provides excellent dielectric strength and chemical resistance, while niobium offers high tensile strength and corrosion resistance. Owing to these combined properties, PTFE (Polytetrafluoroethylene) Niobium Insulated Wire finds use in demanding applications like superconducting magnets, particle accelerators, and aerospace wiring systems where durability and performance are critical. Across the spectrum of wire options, Goodfellow's PTFE Niobium Insulated Wire delivers advanced functionality for today's high-tech industries.
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Tolerances

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

Material Properties for Metals

Atomic Properties
Mechanical Properties
Electrical Properties
Physical Properties
Thermal Properties
Atomic Properties
Element Value
Atomic number 41
Crystal structure Body centred cubic
Electronic structure Kr 4d⁴ 5s¹
Valences shown 2, 3, 4, 5
Atomic weight( amu ) 92.9064
Thermal neutron absorption cross-section( Barns ) 1.15
Photo-electric work function( eV ) 4.3
Atomic radius - Goldschmidt( nm ) 0.147
Ionisation potential( No./eV ) 3/ 25.0
Ionisation potential( No./eV ) 2/ 14.3
Ionisation potential( No./eV ) 6/ 103
Ionisation potential( No./eV ) 1/ 6.88
Ionisation potential( No./eV ) 4/ 38.3
Ionisation potential( No./eV ) 5/ 50.5
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.397
Poisson's ratio 0.397
Bulk modulus( GPa ) 170.3
Bulk modulus( GPa ) 170.3
Tensile modulus( GPa ) 104.9
Tensile modulus( GPa ) 104.9
Izod toughness( J m⁻¹ ) 10-120
Hardness - Vickers( kgf mm⁻² ) 115
Hardness - Vickers( kgf mm⁻² ) 160
Tensile strength( MPa ) 330
Tensile strength( MPa ) 585
Yield strength( MPa ) 550
Yield strength( MPa ) 240
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 16@20@20°C
Superconductivity critical temperature( K ) 9.25
Temperature coefficient( K⁻¹ ) 0.0026@0-100°C
Physical Properties
Element Value
Boiling point( C ) 4742
Density( gcm⁻³ ) 8.57@20°C
Thermal Properties
Element Value
Melting point( C ) 2468
Latent heat of evaporation( J g⁻¹ ) 7360
Latent heat of fusion( J g⁻¹ ) 290
Specific heat( J K⁻¹ kg⁻¹ ) 268@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 53.7@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 7.2@0-100°C

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