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    • Hafnium - Foil

      Discovered in 1923 by D. Coster and G.C. von Hevesey in Copenhagen, Denmark. Hafnium is a silvery coloured, 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 recrystallisation 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.


      When dealing with foils at 0.05mm or thinner, we offer 2 options: Light Tight tested foils (denoted as LT in our catalogue) or standard untested foils (denoted as Sizes in our catalogue).

      When the foil thickness surpasses 0.05mm, there's no requirement for a light-tight test, as these foils become naturally denser and provide a more effective barrier against light.

    18 results

    Product
    Product HF00-FL-000190 97.0% Hafnium Foil 0.003mm thick Purity 97.0% Thickness 0.003mm --- Size 10mm x 10mm - 25mm x 25mm
    Product HF00-FL-000100 97.0% Hafnium Foil 0.004mm thick Purity 97.0% Thickness 0.004mm --- Size 25mm x 25mm - 50mm x 50mm
    Product HF00-FL-000110 97.0% Hafnium Foil 0.005mm thick Purity 97.0% Thickness 0.005mm - Diameter 4mm - 15mm Size Light Tight 10mm x 10mm - 25mm x 25mm Size 10mm x 10mm - 50mm x 50mm
    Product HF00-FL-000120 97.0% Hafnium Foil 0.006mm thick Purity 97.0% Thickness 0.006mm - Diameter 4mm - 15mm Size Light Tight 10mm x 10mm - 25mm x 25mm Size 10mm x 10mm - 50mm x 50mm
    Product HF00-FL-000130 97.0% Hafnium Foil 0.007mm thick Purity 97.0% Thickness 0.007mm - Diameter 4mm - 15mm Size Light Tight 10mm x 10mm - 25mm x 25mm Size 10mm x 10mm - 50mm x 50mm
    Product HF00-FL-000140 97.0% Hafnium Foil 0.008mm thick Purity 97.0% Thickness 0.008mm - Diameter 4mm - 15mm Size Light Tight 10mm x 10mm - 25mm x 25mm Size 10mm x 10mm - 50mm x 50mm
    Product HF00-FL-000150 97.0% Hafnium Foil 0.009mm thick Purity 97.0% Thickness 0.009mm - Diameter 4mm - 50.8mm Size Light Tight 10mm x 10mm - 50mm x 50mm Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000160 97.0% Hafnium Foil 0.01mm thick Purity 97.0% Thickness 0.01mm - Diameter 4mm - 50.8mm Size Light Tight 10mm x 10mm - 50mm x 50mm Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000170 97.0% Hafnium Foil 0.0125mm thick Purity 97.0% Thickness 0.0125mm - Diameter 4mm - 50.8mm Size Light Tight 10mm x 10mm - 100mm x 100mm Size 10mm x 10mm - 100mm x 100mm
    Product HF00-FL-000180 97.0% Hafnium Foil 0.015mm thick Purity 97.0% Thickness 0.015mm - Diameter 4mm - 50.8mm Size Light Tight 10mm x 10mm - 100mm x 100mm Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000290 97.0% Hafnium Foil 0.02mm thick Purity 97.0% Thickness 0.02mm - Diameter 4mm - 50.8mm Size Light Tight 10mm x 10mm - 100mm x 100mm Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000200 97.0% Hafnium Foil 0.025mm thick annealed Purity 97.0% Thickness 0.025mm Temper Annealed Diameter 4mm - 50.8mm Size Light Tight 10mm x 10mm - 100mm x 100mm Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000105 97.0% Hafnium Foil 0.075mm thick annealed Purity 97.0% Thickness 0.075mm Temper Annealed Diameter 4mm - 50.8mm - Size 10mm x 10mm - 100mm x 100mm
    Product HF00-FL-000210 97.0% Hafnium Foil 0.125mm thick annealed Purity 97.0% Thickness 0.125mm Temper Annealed Diameter 4mm - 50.8mm - Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000114 97.0% Hafnium Foil 0.14mm thick annealed Purity 97.0% Thickness 0.14mm Temper Annealed Diameter 4mm - 50.8mm - Size 10mm x 10mm - 150mm x 150mm
    Product HF00-FL-000220 97.0% Hafnium Foil 0.25mm thick annealed Purity 97.0% Thickness 0.25mm Temper Annealed Diameter 4mm - 50.8mm - Size 10mm x 10mm - 100mm x 100mm
    Product HF00-FL-000230 97.0% Hafnium Foil 0.5mm thick annealed Purity 97.0% Thickness 0.5mm Temper Annealed Diameter 4mm - 30mm - Size 10mm x 10mm - 100mm x 100mm
    Product HF00-FL-000240 97.0% Hafnium Foil 1mm thick annealed Purity 97.0% Thickness 1mm Temper Annealed Diameter 4mm - 20mm - Size 10mm x 10mm - 100mm x 100mm
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