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Aluminum Top Hat Single Crystal

Formula: Al
Form: Single Crystal
Material: Aluminum
CAS Number: 7429-90-5
Commodity: Metals
Purity: 99.999%
Top Section Thickness: 1mm
Bottom Section Thickness: 1mm
Inside Diameter: 8mm
Outside Diameter: 10mm
Aluminum Top Hat Single Crystal is just one of the 15 variations of this product offered by Goodfellow. As a single crystal material, it provides researchers with a very pure sample free of grain boundaries, with a specific orientation that makes it ideal for investigating fundamental materials properties. Applications of Aluminum Top Hat Single Crystals span fields like physics, chemistry, and crystallography. For example, the precisely aligned crystal structure allows them to be used as monochromators for focusing x-ray or neutron beams. Other applications include serving as electrodes in research on catalytic reactions.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Single Crystal
Orientation See Item
Thickness +2% / -1%
Length +2% / -1%
Top Hat
Inside Diameter +2% / -1%
Outside Diameter +2% / -1%
Bottom Section Thickness +2% / -1%
Top Section Thickness +2% / -1%

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 13
Crystal structure Face centred cubic
Electronic structure Ne 3s² 3p¹
Valences shown 3
Atomic weight( amu ) 26.98154
Thermal neutron absorption cross-section( Barns ) 0.232
Photo-electric work function( eV ) 4.2
Atomic radius - Goldschmidt( nm ) 0.143
Ionisation potential( No./eV ) 4/ 120
Ionisation potential( No./eV ) 5/ 154
Ionisation potential( No./eV ) 6/ 190
Ionisation potential( No./eV ) 1/ 5.99
Ionisation potential( No./eV ) 3/ 28.4
Ionisation potential( No./eV ) 2/ 18.8
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.345
Poisson's ratio 0.345
Bulk modulus( GPa ) 75.2
Bulk modulus( GPa ) 75.2
Tensile modulus( GPa ) 70.6
Tensile modulus( GPa ) 70.6
Hardness - Vickers( kgf mm⁻² ) 21
Hardness - Vickers( kgf mm⁻² ) 35-48
Tensile strength( MPa ) 130-195
Tensile strength( MPa ) 50-90
Yield strength( MPa ) 110-170
Yield strength( MPa ) Oct-35
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 2.67@20@20°C
Superconductivity critical temperature( K ) 1.175
Temperature coefficient( K⁻¹ ) 0.0045@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.42
Physical Properties
Element Value
Boiling point( C ) 2467
Density( gcm⁻³ ) 2.7@20°C
Thermal Properties
Element Value
Melting point( C ) 660.4
Latent heat of evaporation( J g⁻¹ ) 10800
Latent heat of fusion( J g⁻¹ ) 388
Specific heat( J K⁻¹ kg⁻¹ ) 900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 237@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 23.5@0-100°C

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