What is the composition of the B1 phase in Cu-Zr alloy?

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SUMMARY

The B1 phase in the Cu-Zr alloy, commonly referred to as the CuZr phase, consists of a unit cell containing 4 copper atoms and 4 zirconium atoms. This nomenclature reflects a 1:1 atomic ratio rather than a direct representation of the unit cell composition. The discussion clarifies that the designation CuZr is used for simplicity and to indicate the stoichiometric relationship between copper and zirconium, despite the actual composition being Cu4Zr4. Understanding this terminology is crucial for accurate communication in materials science.

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Fabian_m9
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Hi,
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.
 
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Fabian_m9 said:
Are they just expressing it as a ratio?
Yes, and there may be other structures that also have a 1:1 ratio.
 

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