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Tantalum Top Hat Single Crystal - T/T 1mm B/T 1mm OD 10mm ID 8mm

Details

SKU: 1000210980 Product Code: TA00-SC-000194
Tantalum Top Hat Single Crystal combines the high purity, perfect lattice structure, and extreme corrosion resistance of monocrystalline tantalum with a geometry engineered for secure sealing or housing applications in high-vacuum and high-temperature systems. The “top hat” form ensures precise alignment and sealing interfaces, making it essential for electron beam systems, crystal growth chambers, and semiconductor processing equipment. Industries employ these components where uniform thermal expansion and chemical inertness are critical to maintaining vacuum integrity and process purity. Research applications include ultra-high-vacuum experimental setups, specialized bonding studies, and crystallographic orientation tests. The synergy of geometry and monocrystalline material properties ensures unparalleled stability and precision in demanding engineering and scientific environments.
Formula: Ta
Percentage Purity: 99.999%
Top Section Thickness: 1mm
Bottom Section Thickness: 1mm
Outside Diameter: 10mm
Inside Diameter: 8mm
Orientation: -100
Orientation Accuracy: =< 1°
Polish: Unpolished
CAS Number: 7440-25-7
UOM Code: 843-184-50
Legacy Code: TA002032
Distributor Code: GF84318450

Tolerances

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

Tolerances

Top Hat
Inside Diameter +2% / -1%
Outside Diameter +2% / -1%
Bottom Section Thickness +2% / -1%
Top Section Thickness +2% / -1%
$2,370.00
each
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Material Properties

Atomic Properties
Mechanical Properties
Electrical Properties
Physical Properties
Thermal Properties
Atomic Properties
Element Value
Atomic number 73
Crystal structure Body centred cubic
Electronic structure Xe 4f¹⁴ 5d³ 6s²
Valences shown 2,3,4,5
Atomic weight( amu ) 180.9479
Thermal neutron absorption cross-section( Barns ) 22
Photo-electric work function( eV ) 4.1
Natural isotope distribution( Mass No./% ) 180/ 0.012
Natural isotope distribution( Mass No./% ) 181/ 99.988
Atomic radius - Goldschmidt( nm ) 0.147
Ionisation potential( No./eV ) 1/ 7.88
Ionisation potential( No./eV ) 2/ 16.2
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.342
Poisson's ratio 0.342
Bulk modulus( GPa ) 196.3
Bulk modulus( GPa ) 196.3
Tensile modulus( GPa ) 185.7
Tensile modulus( GPa ) 185.7
Hardness - Vickers( kgf mm⁻² ) 200
Hardness - Vickers( kgf mm⁻² ) 90
Tensile strength( MPa ) 760
Tensile strength( MPa ) 172-207
Yield strength( MPa ) 705
Yield strength( MPa ) 310-380
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 13.5@20°C
Superconductivity critical temperature( K ) 4.47
Temperature coefficient( K⁻¹ ) 0.0035@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.33
Physical Properties
Element Value
Boiling point( C ) 5425
Density( gcm⁻³ ) 16.6@20°C
Thermal Properties
Element Value
Melting point( C ) 2996
Latent heat of evaporation( J g⁻¹ ) 4165
Latent heat of fusion( J g⁻¹ ) 174
Specific heat( J K⁻¹ kg⁻¹ ) 140@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 57.5@0-100
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 6.5@0-100°C