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Bismuth ( Bi )

Material Information

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Foil Lump Powder Rod Single Crystal Sputtering Target
Foil Lump Powder Rod Single Crystal Sputtering Target

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General Description:  

Discovered in the fifteenth century, although its discoverer is not known.

Bismuth is a brittle metal which is silvery in color with a pink tinge. It is stable in air and water. It has poor thermal and electrical properties and finds applications in the manufacture of fusible alloys, a range of materials with low melting points which are suitable for various applications including solders and thermal fuses. Pure bismuth shows a high absorbtion of gamma rays which makes it useful as a filter or window for these particles, whilst at the same time permitting the passage of neutrons.

   

Atomic Properties

Atomic number 83
Atomic radius - Goldschmidt ( nm ) 0.182
Atomic weight ( amu ) 208.9804
Crystal structure Rhombohedral
Electronic structure Xe 4f14 5d1O 6s2 6p3
Ionization potential No. eV
1 7.29
2 16.7
3 25.6
4 45.3
5 56.0
6 88.3
Natural isotope distribution Mass No. %
209 100
Photo-electric work function ( eV ) 4.4
Thermal neutron absorption cross-section ( Barns ) 0.034
Valences shown 3, 5

Electrical Properties

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

Mechanical Properties

Material condition Polycrystalline
Bulk modulus ( GPa ) 31.3
Hardness - Vickers 16-19
Poisson's ratio 0.33
Tensile modulus ( GPa ) 34.0

Physical Properties

Boiling point ( C ) 1560
Density @20C ( g cm-3 ) 9.80
Melting point ( C ) 271.3

Thermal Properties

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

Buy Bismuth on-line

We stock and supply the following standard forms:
Foil Lump Powder Rod Single Crystal Sputtering Target
Foil Lump Powder Rod Single Crystal Sputtering Target

Choose a form to search our on-line catalog  

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