Nanocrystallization of Fe_(73)Si_7B_(17)Nb_3 metallic glass induced by microwave treatment in magnetic field of a single mode 915 MHz applicator

摘要

Microwave processing of the Fe_(73)Si_7B_(17)Nb_3 metallic glass alloy powder was performed in a separated magnetic (H-) field by using a single mode 915 MHz microwave applicator. Rapid nanocrystallization was realized during microwave heating and a porous sintered sample with a diameter of 30 mm was produced using a loading pressure of 5MPa. Cubic Fe and Fe_(35)B phases were observed in the glassy matrix. Compared to conventional heating, microwave heating of the Fe_(73)Si_7B_(17)Nb_3 metallic glass powder exhibited the enhancement of crystallization kinetics.