Preferences
CompanyGoodfellow Corporation
LanguageEnglish (US)
CurrencyUSD
Deliver toUnited States of America

Preferences

USD
    Total:
     
     Product(s)  Item(s)
    Log In | Register
    • Hafnium - Wire

      Hafnium - Wire

      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.

      A single or multiple flexible strand of pure metal or alloy.

      Wire

    Periodic Table

     
     
     
    *
    **
     
      *  
      **  

    Materials

                                                          Material Forms

                                                          Material Types

                                                          Sorry – Your selected filters returned no results.

                                                          Please try a different filter selection or choose from one of the following product types below:

                                                          Sorry – Your search returned no website content results

                                                          Please try a different search value or choose from one of the following product types below:

                                                          Sorry, but you need to update your browser to use our website.

                                                          We apologise for any inconvenience this may cause and thanks for your patience.

                                                          To place a phone order:
                                                          US:1 800 821 2870
                                                          UK: 0800 731 4653

                                                          Customer Support: info@goodfellow.com

                                                          Thank you
                                                          The Goodfellow Team