MECHANICAL AND MAGNETIC PROPERTIES CORRELATION IN DIELECTROMAGNETS FROM MIXTURE OF HARD MAGNETIC POWDERS

摘要

Dielectromagnets are permanent magnets prepared from hard magnetic powder bonded by resin. Comparison of advantages and disadvantages of dielectromagnets made from different kind of hard magnetic powders generated idea of preparing dielectromagnets from mixture of powders not only one of them. The purpose of investigation is to find permanent magnets with properties exactly requested for different kinds of electrical micromachines. Magnetic and mechanical properties of dielectromagnets depend on characters of hard magnetic powders as chemical compound, shape and size, on properties of resin and applied technology. Papers present correlation between magnetic and mechanical properties of dielectromagnets prepared from mixture of strontium ferrite powder and melt-spun ribbon Nd-Fe-B powder.