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Formula: Al
Form: Single Crystal
Material: Aluminum
CAS Number: 7429-90-5
Commodity: Metals
Purity: 99.999%
Diameter: 12mm
Length: 50mm
Aluminum Single Crystal is a highly ordered metallic form in which the entire structure shares a uniform crystallographic orientation, eliminating grain boundaries and minimizing defect-related scattering. Produced through precise solidification control and orientation techniques, it offers exceptional electrical conductivity, thermal uniformity, and mechanical stability. This makes it indispensable in semiconductor fabrication, precision metrology, and advanced optical systems. Key applications include X-ray monochromators, electron backscatter diffraction standards, and substrates for epitaxial growth of semiconductor layers. Specific technologies benefit from its superior crystallinity, such as high-sensitivity detectors and precision interferometry systems, where minimal lattice distortion is critical. Research in this field focuses on reducing processing-induced defects via optimized cutting, polishing, and etching techniques, ensuring maximum performance in electrical conduction and optical clarity. Aluminum Single Crystal continues to play a pivotal role in both industrial manufacturing and fundamental materials research, providing unmatched reliability in environments demanding atomic-scale precision.
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Tolerances

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