ferromagnetic material becomes paramagnetic material
paramagnetic material becomes diamagnetic material
paramagnetic materíal becomes ferromagnetic material
ferromagnetic material becomes diamagnetic material
Solution
Ferromagnetism decreases with rise in temperature. If we heat a ferromagnetic substance, then at a definite temperature the ferromagnetic property of the substance suddenly disappears and the substance becomes paramagnetic. The temperature above which a ferromagnetic substance becomes paramagnetic is called the Curie temperature of the substance.