Construction and magnetic properties of the amorphous–nanocrystalline cores

Abstract This paper describes the construction and method of preparation of the ring-shaped composite cores which were made from Metglas 2605 TCA and Fe73.5Cu1Nb3Si13.5B9 (Finemet) nanocrystalline ribbons. Two types of construction of composite cores were used in the investigation carried out, the first having parallel and the second having coaxial arrangement of the component cores. Moreover, the study of the magnetisation process was made for these cores at different frequencies of a magnetising field.