Patents
A process for the preparation of Fe-based ultrasoft nanocrystalline ferromagnetic alloys having melting low carbon iron at a temperature of 1600K - 1700K, adding ferro-niobium, ferro-boron to the melt and raising the temperature to 1900K - 2000K, adding ferro-silicon & copper to the above said melt, casting the melt of alloy matrix in the form of cylindrical ingot, melting the cast of alloy matrix in a crucible at a temperature of 1400K - 1500K and ejecting on a rapidly rotating quenching wheel to get ribbon, characterized in flat heating the ribbon for 15-20 minutes in inert gas atmosphere at a temperature of 600-900K to get nanocrystalline state.