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Hafnium > 0.2% Zirconium Foil

Grade: Hafnium > 0.2%
Formula: Zr
Form: Foil/Film/Sheet
Material: Zirconium
CAS Number: 7440-67-7
Commodity: Metals
Purity: 99.2%
Temper: Annealed
Thickness: 1mm
As part of our wide range of metal foils, Hafnium > 0.2% Zirconium Foil is available in 10 variations. Over 99.8% of this foil is zirconium, which provides improved mechanical strength and fabricability. The remaining 0.02% is hafnium, which is a lustrous, corrosion-resistant transition metal. w Potential applications include being used in nuclear control rods, radiation shielding and high-temperature thermocouples.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Foil/Film/Sheet
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 40
Crystal structure Hexagonal close packed
Electronic structure Kr 4d² 5s²
Valences shown 2,3,4
Atomic weight( amu ) 91.22
Thermal neutron absorption cross-section( Barns ) 0.182
Photo-electric work function( eV ) 3.8
Natural isotope distribution( Mass No./% ) 96/ 2.8
Natural isotope distribution( Mass No./% ) 92/ 17.1
Natural isotope distribution( Mass No./% ) 91/ 11.2
Natural isotope distribution( Mass No./% ) 94/ 17.5
Natural isotope distribution( Mass No./% ) 90/ 51.4
Atomic radius - Goldschmidt( nm ) 0.16
Ionisation potential( No./eV ) 4/ 34.34
Ionisation potential( No./eV ) Jun-99
Ionisation potential( No./eV ) 2/ 13.13
Ionisation potential( No./eV ) 1/ 6.84
Ionisation potential( No./eV ) 5/ 81.5
Ionisation potential( No./eV ) 3/ 22.99
Mechanical Properties
Element Value
Material condition Polycrystalline
Material condition Soft
Poisson's ratio 0.38
Poisson's ratio 0.38
Bulk modulus( GPa ) 89.8
Bulk modulus( GPa ) 89.8
Tensile modulus( GPa ) 98
Tensile modulus( GPa ) 98
Hardness - Vickers( kgf mm⁻² ) 85-100
Tensile strength( MPa ) 350-390
Yield strength( MPa ) 250-310
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 44@20@20°C
Superconductivity critical temperature( K ) 0.61
Temperature coefficient( K⁻¹ ) 0.0044@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 1.17
Physical Properties
Element Value
Boiling point( C ) 4377
Density( gcm⁻³ ) 6.49@20°C
Thermal Properties
Element Value
Melting point( C ) 1852
Latent heat of evaporation( J g⁻¹ ) 6360
Latent heat of fusion( J g⁻¹ ) 211
Specific heat( J K⁻¹ kg⁻¹ ) 281@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 22.7@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 5.9@0-100°C

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