The materials used in the construction of the electric motor is simply important because these materials need to perform the electric motor insulation process and to use the best electric motor the material has the lowest loss possible in all available technologies and those that are economically accessible.
The silicon steel is soft and basic magnetic material for the electric motor. Amorphous soft powder material were introduced recently and with potential for use in high-speed or high-frequency electric motor. Pure copper is the preferred material for use in electrical circuits, also called windings, while the brass or aluminum, are used for electric motor ez-sg17l-l350 winding squirrel cage.
You must choose materials that have high magnetic permeability, it will be possible to offer the lowest electric motor possible resistance to the magnetic field, each cycle of the current, will change the direction of the magnetic dipoles in the magnetic core of the electric motor and is why it the use of soft magnetic materials is necessary.