AN INVESTIGATION INTO SOME PROPERTIES OF FERROMAGNETIC - MATERIALS,

Abstract

The present work is ung at exploration of various theories through which the ferromagnetic behaviour is studied. Special reference has been laid on Domain thsor$. Various types of iron losses have been studied on the basis of Domain theory and on extensive insight into the Anomalous lose has been attempted. Hysteresis loss has been analysed as oon-posed of Barkhausen»loss and Domain~►wall energy loss, and the analysi a has been extended to explain the development of Yeri-oue special properties In ferromagnetic materials by alloying, which on be a basis for the design of fsrro.aagnetto alloys for specific purposes. Various experiments have also been per-formed for measurement and qualitative demonstration of some properties of ferromagnetic materials. Special mention may be made of magnetostriotion; and local -lose testing in Electrical sheet steel with the help of measuring heads specially fubriaa-ted for the purpose. Local lose testing method is suitable for finding iron losses in the material as well as for finding the quality of the manufactured materials# This method oan be ix tended for quality control of Electrical sheet steels during production.