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Yttrium ( Y )

Material Information

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Foil Lump Powder Rod Sputtering Target Wire
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General Description:  

Yttrium was discovered by J. Gadolin in Åbo, Finland, in 1794.

Yttrium is a lanthanide group metal which is found in most rare earth minerals, particularly yttrotantalite which, whilst containing yttrium and tantalum, also contains niobium, cerium, uranium, iron and calcium in varying amounts. The mineral is found in Ytterby, Sweden, the town which gave its name to several elements. Yttrium has an abundance of 30 ppm in the earth's crust. The metal is stable in air due to the formation of an oxide film, but it will burn easily and will react with water to produce hydrogen.

Yttrium is used as yttrium phosphor to produce the red colors on television screens and monitors. It also finds applications as a constituent of superconductors as well as in X-ray filters and superalloys. The radioactive isotope, 9OY, can be used as needles to treat pain transmitting nerves in the spinal area.

   

Atomic Properties

Atomic number 39
Atomic radius - Goldschmidt ( nm ) 0.181
Atomic weight ( amu ) 88.9059
Crystal structure Hexagonal close packed
Electronic structure Kr 4d1 5s2
Ionization potential No. eV
1 6.38
2 12.2
3 20.5
4 61.8
5 77
6 93
Natural isotope distribution Mass No. %
89 100
Photo-electric work function ( eV ) 3.1
Thermal neutron absorption cross-section ( Barns ) 1.3
Valences shown 3

Electrical Properties

Electrical resistivity @20C ( µOhmcm ) 53
Temperature coefficient @0-100C ( K-1 ) 0.00271
Thermal emf against Pt (cold 0C - hot 100C) ( mV ) +0.55

Mechanical Properties

Material condition Soft Hard Polycrystalline
Bulk modulus ( GPa )     37.3
Hardness - Brinell 30-60 100-140
Izod toughness ( J m-1 ) 24
Poisson's ratio     0.265
Tensile modulus ( GPa )     66.3
Tensile strength ( MPa ) 130 455
Yield strength ( MPa ) 57 375

Physical Properties

Boiling point ( C ) 3338
Density @20C ( g cm-3 ) 4.478
Melting point ( C ) 1522

Thermal Properties

Coefficient of thermal expansion @0-400C ( x10-6 K-1 ) 10.8
Latent heat of evaporation ( J g-1 ) 4135
Latent heat of fusion ( J g-1 ) 193
Specific heat @25C ( J K-1 kg-1 ) 285
Thermal conductivity @0-100C ( W m-1 K-1 ) 17.2

Buy Yttrium on-line

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

Choose a form to search our on-line catalog  

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