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I am compiling some training material and would like to include a graph to indicate the different characteristics of silicon steel "Si-Fe" and mu-metal "Fe-Ni". The best curve I could find in SI units below seems theoretical.

Does anyone have a better graph or real data that can be used? I can then use pgfplots to create the curves.

enter image description here

(this is a cross post from Electrical Engineering)

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  • $\begingroup$ What is wrong with these curves? What kind of curve would be "better"? Also, could you tell us why you need this curve? Context always helps to write a good answer. Finally, please consider removing one of the cross posts. Our general rules apply also to questions with bounties. electronics.stackexchange.com/questions/497147/… $\endgroup$
    – Semoi
    Commented May 10, 2020 at 7:11
  • $\begingroup$ This is for training material. It is visible that the curve has been approximated. I would like the similar curves plotted indicating the difference in saturation and losses at saturation with actual data. $\endgroup$
    – skvery
    Commented May 13, 2020 at 20:20

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What about this Figure? It is part of a publication by A Krings and J Soulard. If you access the figure via the publication, it also has axis labels and SI unit scales: https://ieeexplore.ieee.org/document/7194514

enter image description here

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  • $\begingroup$ Nice, but I think they might have normalised the y-axis. 1.2 T for NiFe? $\endgroup$
    – skvery
    Commented May 14, 2020 at 19:52
  • $\begingroup$ They report a max of 1.2 T for NiFe in the paper. I'm afraid I can't comment much more than that - it's not really my area of expertise. $\endgroup$
    – Samalama
    Commented May 14, 2020 at 20:32
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    $\begingroup$ I have sent an email to the authors. They might clarify the issue. $\endgroup$
    – skvery
    Commented May 14, 2020 at 20:54
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    $\begingroup$ They confirmed it is a high content NiFe. $\endgroup$
    – skvery
    Commented May 16, 2020 at 12:29

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