Dear colleagues! Have you ever studied Zr52.5 Cu32.5 Al10 Fe5 ? Could you share your experience if you have? I am interested in its phases.
I am studying the crystallization of this alloy from an amorphous state when heated, I cannot decipher the XRD analysis.
I'm not an expert of this alloy, but I'm an expert of diffraction, as other researchers of Researchgate. You can share more information about your pattern, so we can try to help you.
In the task we were able to resolve two crystal structures of previously unknown intermetallic phases as-crystallized from metallic glass, including Zr5Ni4Al (see Article Zirconium-aluminium ordering in Zr5Ni4Al - A new superstruct...
; the other work is 10.1002/zaac.200500387). It is likely that in your case other phases develop, but the Zr5Ni4Al case may be related. In these cases we learnt the following lessons. In both cases we were lucky that a single but unknown phase developped. We did Powder-XRD based indexing and structure solution. Relying on the ICDD cards would not have helped. Consider to do TEM if there might be severval phases. It would help if you would compare the diffraction data for different glass compositions. Moreover, sometimes the crystalization may occur in different steps, and then you can do dedicated crystallization treatments to find different types of product phases.
Marcella Bini Andreas Leineweber
Thnx for your answer!
To evaluate crystallization, I annealed the amorphous film and sample after hpt at the temperature of the first crystallization peak on the dsc curve. It was possible to determine the phases separated in the film. However, after deformation, the pattern has changed and I cannot figure out which phase is crystallizing. In my databases, there is no such position of intensity peaks.
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