Recent Trend of Permanent Magnets and their Applications

Abstract

Many kinds of permanent magnet materials have been developed and applied to industrial products for more than 80 years. Nd-Fe-B sintered magnets have been essential materials for applications in which miniaturization, energy conservation and anti-environmental pollution are required. R and D activities on permanent magnets and their applications should have been done in co-operation with each other for the expansion of permanent magnets. Recent trend of permanent magnets and their applications are reviewed from the viewpoint of high performance, new materials and applications.