Abstract
Soft magnetic materials are microstructure-sensitive. The performance of porous magnetic materials manufactured by the P/M method, thus, is dependent upon the morphology of the residual pores, which makes differences in demagnetization, etc. The present study aims at examining the possibility for improvement in magnetism by the morphological control of the pores in powder metallurgy of magnetic materials. The morphological characteristics of the pores have been evaluated by the size-shape dispersion diagram proposed by the authors, and related quantitatively to the specific magnetic properties.
