A compound, Fe 3 C with the fixed composition Fe-6.7 wt % C bounds one end of this diagram and pure iron the other end. Pure iron can have two different crystal structures as its temperature is ...

In fact, the only thing needed to make them is iron and nitrogen, plus an understanding of crystal structure and some engineering ingenuity. To start things off, what even is a permanent magnet?

This structure permitted the ... of Paris-Saclay explains that a single crystal of epsilon-iron is challenging to create directly from the surrounding alpha-iron because the transformation ...