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Cobalt Square Single Crystal

Cobalt Square Single Crystal is 1 from a range of Goodfellow's single crystal products. Single crystals like this cobalt specimen are highly valued for properties such as their purity, lack of grain boundaries, and specific orientation. These attributes make cobalt single crystals ideal for use in fundamental research in fields like physics, catalytic chemistry, and materials science. For example, cobalt single crystals can serve as crystal monochromators or analyzers for x-rays and neutrons.
Formula: Co
Percentage Purity: 99.99%
Thickness: 1mm
Size: 7x7mm
Orientation: (11-20)
Orientation Accuracy: Approx. 0.1°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-48-4
UOM Code: 775-402-43
SKU: 1000061123
Product Code: CO00-SC-000217

Tolerances

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

Health hazard/Hazardous to the ozone layer

Serious health hazard

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$3,406.61
each
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Tolerances

Single Crystal
Orientation See Item
Thickness +2% / -1%
Length +2% / -1%
Square
Size +2% / -1%
Technical Data Sheet
Safety Data Sheet

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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 27
Crystal structure Hexagonal close packed
Electronic structure Ar 3d⁷ 4s²
Valences shown 2, 3
Atomic weight( amu ) 58.9332
Thermal neutron absorption cross-section( Barns ) 37.5
Photo-electric work function( eV ) 5
Atomic radius - Goldschmidt( nm ) 0.125
Ionisation potential( No./eV ) 2/ 17.06
Ionisation potential( No./eV ) 4/ 51.3
Ionisation potential( No./eV ) 3/ 33.5
Ionisation potential( No./eV ) 1/ 79.5
Ionisation potential( No./eV ) 1/ 79.5
Ionisation potential( No./eV ) 6/ 102
Mechanical Properties
Element Value
Material condition Hard
Material condition Soft
Poisson's ratio 0.32
Poisson's ratio 0.32
Bulk modulus( GPa ) 181.5
Bulk modulus( GPa ) 181.5
Tensile modulus( GPa ) 211
Tensile modulus( GPa ) 211
Hardness - Vickers( kgf mm⁻² ) 320
Hardness - Vickers( kgf mm⁻² ) 170
Tensile strength( MPa ) 1135
Tensile strength( MPa ) 760
Yield strength( MPa ) 345-485
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 6.34@20@20°C
Temperature coefficient( K⁻¹ ) 0.0066@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) -1.33
Physical Properties
Element Value
Boiling point( C ) 2870
Density( gcm⁻³ ) 8.9@20°C
Thermal Properties
Element Value
Melting point( C ) 1495
Latent heat of evaporation( J g⁻¹ ) 6490
Latent heat of fusion( J g⁻¹ ) 263
Specific heat( J K⁻¹ kg⁻¹ ) 456@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 100@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 12.5@0-100°C
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