Recent developments in conventional soft magnetic materials

Abstract

Recent developments in conventional soft magnetic materials, with particular reference to their applications, are discussed under three main headings: grain-oriented silicon-iron, high permeability materials and thin ferromagnetic films. Ferrites have been excluded since they will be the subject of a later article.

The great age of British magnetism

“…The work was supplemented by observations of Barkhausen jumps in soft wires by Tebble and Pearson (Tebble 1955) in Leeds. These studies were continued more recently by Thompson and his colleagues in Cardiff (Thompson 1969), using microthermocouples to make measurements of very small temperature changes to relate the magnetisation, texture and other properties of transformer steels. Following intensive work in the USA and elsewhere, transformer steels are now heavily cold-rolled textured materials and have much better properties.…”