Bismuth Disk Single Crystal

Bismuth Disk Single Crystal is one of Goodfellow's 13 variations of single crystal bismuth disks. As a single crystal product, Bismuth Disk Single Crystal lacks grain boundaries and has a specific orientation, making it useful for fundemental research in physics, chemistry, and materials science. For example, the high purity and ordered crystal structure allow bismuth single crystals to be used as monochromators for x-ray diffraction or as electrodes in electrochemical studies. By offering disks in different orientations and purities, Goodfellow enables researchers to select the ideal bismuth crystal for studying anisotropic properties or minimizing defects.

Formula: Bi
Percentage Purity: 99.999%
Thickness: 1.5mm
Diameter: 12mm
Orientation: -111
Orientation Accuracy: =< 1°
Polish: Polished
Surface Finish: =< 0.03µm Ra
CAS Number: 7440-69-9
UOM Code: 128-248-27

SKU: 1000036376

Product Code: BI00-SC-000144

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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	83
Crystal structure	Rhombohedral
Electronic structure	Xe 4f¹⁴ 5d¹⁰ 6s² 6p³
Valences shown	3, 5
Atomic weight( amu )	208.9804
Thermal neutron absorption cross-section( Barns )	0.034
Photo-electric work function( eV )	4.4
Atomic radius - Goldschmidt( nm )	0.182
Ionisation potential( No./eV )	5/ 56.0
Ionisation potential( No./eV )	1/ 7.29
Ionisation potential( No./eV )	3/ 25.6
Ionisation potential( No./eV )	4/ 45.3
Ionisation potential( No./eV )	6/ 88.3
Ionisation potential( No./eV )	2/ 16.7

Mechanical Properties

Element	Value
Material condition	Polycrystalline
Poisson's ratio	0.33
Bulk modulus( GPa )	31.3
Tensile modulus( GPa )	34
Hardness - Vickers( kgf mm⁻² )	16-19

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	117@20@20°C
Temperature coefficient( K⁻¹ )	0.0046@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	-7.34

Physical Properties

Element	Value
Boiling point( C )	1560
Density( gcm⁻³ )	9.8@20°C

Thermal Properties

Element	Value
Melting point( C )	271.3
Latent heat of evaporation( J g⁻¹ )	857
Latent heat of fusion( J g⁻¹ )	52
Specific heat( J K⁻¹ kg⁻¹ )	124@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	7.9@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	13.4@0-100°C