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    • Hafnium - Foil

      Discovered in 1923 by D. Coster and G.C. von Hevesey in Copenhagen, Denmark. Hafnium is a silvery colored, ductile metal which is found in all minerals containing zirconium. The chemistries of the two metals are similar which makes them difficult to separate, and the properties of each are greatly affected by the presence of the other as an impurity. Both zirconium and hafnium are extracted as the pure metal by reducing the tetrahalide with magnesium, the whole process being carried out under argon as both metals readily combine with other gases (e.g. nitrogen). The abundance of hafnium in the earth's crust is 5.3 ppm. Hafnium will resist corrosion in air due to the formation of an oxide film, although powdered hafnium will burn in air. It is unaffected by alkalis and acids, with the exception of HF. Hafnium can be used to control recrystallization of tungsten filaments but its main application is as control rod material in nuclear reactors due to its ability to absorb neutrons. The ability of hafnium to absorb neutrons means that it can sometimes be an annoying impurity in zirconium metal which is used for nuclear engineering.Foil - Thin sheets of pure metal and metal alloys. Due to their fragile nature, some foils are coated on one side with an acrylic or polyester support. Where foils are supported they are indicated in the detailed item description.

    18 results

    Product
    Product HF00-FL-000190 Hafnium - Foil Thickness 0.003mm --- Size 25mm x 25mm Purity 97.0%
    Product HF00-FL-000100 Hafnium - Foil Thickness 0.004mm --- Size 25mm x 25mm - 50mm x 50mm Purity 97.0%
    Product HF00-FL-000110 Hafnium - Foil Thickness 0.005mm - Diameter 4mm - 15mm Size Light Tight 25mm x 25mm Size 25mm x 25mm - 50mm x 50mm Purity 97.0%
    Product HF00-FL-000120 Hafnium - Foil Thickness 0.006mm - Diameter 4mm - 15mm - Size 25mm x 25mm - 50mm x 50mm Purity 97.0%
    Product HF00-FL-000130 Hafnium - Foil Thickness 0.007mm - Diameter 4mm - 15mm - Size 25mm x 25mm - 50mm x 50mm Purity 97.0%
    Product HF00-FL-000140 Hafnium - Foil Thickness 0.008mm - Diameter 4mm - 15mm - Size 25mm x 25mm - 50mm x 50mm Purity 97.0%
    Product HF00-FL-000150 Hafnium - Foil Thickness 0.009mm - Diameter 4mm - 25mm Size Light Tight 25mm x 25mm - 50mm x 50mm Size 100mm x 100mm Purity 97.0%
    Product HF00-FL-000160 Hafnium - Foil Thickness 0.01mm - Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 50mm x 50mm Size 100mm x 100mm - 150mm x 150mm Purity 97.0%
    Product HF00-FL-000170 Hafnium - Foil Thickness 0.0125mm - Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 100mm x 100mm Size 100mm x 100mm Purity 97.0%
    Product HF00-FL-000180 Hafnium - Foil Thickness 0.015mm - Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000290 Hafnium - Foil Thickness 0.02mm - Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000200 Hafnium - Foil Thickness 0.025mm Temper Annealed Diameter 4mm - 25mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000105 Hafnium - Foil Thickness 0.075mm Temper Annealed Diameter 4mm - 25mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000210 Hafnium - Foil Thickness 0.125mm Temper Annealed Diameter 4mm - 25mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000114 Hafnium - Foil Thickness 0.14mm Temper Annealed Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000220 Hafnium - Foil Thickness 0.25mm Temper Annealed Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000230 Hafnium - Foil Thickness 0.5mm Temper Annealed Diameter 4mm - 15mm Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
    Product HF00-FL-000240 Hafnium - Foil Thickness 1mm Temper Annealed - Size Light Tight 25mm x 25mm - 100mm x 100mm - Purity 97.0%
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