PTFE-Insulated Niobium Wire

PTFE-Insulated Niobium Wire combines niobium’s exceptional corrosion resistance, superconducting potential, and stability at high temperatures with PTFE’s outstanding dielectric properties and chemical inertness. The PTFE insulation protects the conductor from environmental degradation, ensuring performance in chemically aggressive, high-vacuum, and high-temperature settings. Industries use this wire in specialized sensor systems, aerospace power transmission, and advanced research instrumentation. Specific applications include corrosion-proof electrical leads in chemical reactors, high-purity signal wiring in analytical devices, and experimental setups in cryogenic environments. In research, it is employed to investigate conductor behavior under thermal cycling, optimize dielectric stability in extreme conditions, and prototype next-generation aerospace cabling. This combination of niobium’s resilience and PTFE’s protective insulation delivers unmatched performance in demanding industrial and scientific contexts.

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Tolerance

Properties

Reference & Citations

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Tolerances

Insulated Wire

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

Material Properties for Metals

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