The study of nanocrystallization process in Finemet using the activation energy spectrum model

A physically new approach for the description of kinetics of nanocrystalliz ation process formed extremely good soft magnetic material from amorphous F inemet alloy is presented. The nanocrystallization process is assumed to be a superposition of local crystallization transformations, each with its ow n characteristic activation energy. Using isothermal resistivity changes an d differential scanning calorimetry in linear heating regime it has been sh own that the nanocrystallization is a thermally activated process with a di stribution of activation energies.