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I Material phase in Cu-Zr alloy

  1. Mar 3, 2017 #1
    I recently started studying materials science and I am looking at a particular alloy of Copper Zirconium.
    I have identified a B1 phase and they call it a CuZr phase, which I 'm finding rather confusing. Initially I thought that CuZr meant that each unit cell in the lattice was composed of one copper atom and one zirconium atom.
    After looking at a B1 structure of this material I realized that each unit cell in the lattice actually has 4 copper atoms and 4 zirconium atoms, therefore I am not sure why they call it a CuZr phase instead of Cu4Zr4.
    Are they just expressing it as a ratio? So for every copper atom there is one zirconium atom?
    Your help will be appreciated.
  2. jcsd
  3. Mar 5, 2017 #2


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    Science Advisor

    Yes, and there may be other structures that also have a 1:1 ratio.
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