Niobium Disk Single Crystal

Niobium Disk Single Crystal provides outstanding superconductivity, high ductility, and excellent resistance to corrosion in a precisely machined flat geometry. As a single crystal, it offers minimal grain boundary scattering, leading to enhanced electrical and thermal conductivity, making it ideal for high-performance resonators, superconducting radio frequency (SRF) cavities, and precision optical components. Industries such as particle physics, advanced electronics, and aerospace use it for accelerator components, quantum computing elements, and high-purity optical substrates. In research, it enables fundamental studies on superconducting behavior, crystallographic effects on electron transport, and advanced surface finishing techniques. The disk form ensures uniform thickness and dimensional stability, allowing predictable performance in high-specification superconducting and electronic applications.

Formula: Nb
Percentage Purity: 99.999%
Thickness: 1mm
Diameter: 10mm
Orientation: -111
Orientation Accuracy: =< 1°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-03-1
UOM Code: 674-221-47
Legacy Code: NB0020AT
Distributor Code: GF67422147

SKU: 1000174863

Product Code: NB00-SC-000278

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Tolerances

Single Crystal

Orientation		See Item
Thickness		+2% / -1%
Length		+2% / -1%

Disk

Diameter		+2% / -1%

Tolerances

Single Crystal

Orientation		See Item
Thickness		+2% / -1%
Length		+2% / -1%

Disk

Diameter		+2% / -1%

Technical Data Sheet

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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