Importance

Loading Importance Indicators...

Abstract

A process is provided for a technologically controllable, economic production of hard-magnetic parts from Sm.sub.2 --(Fe,M).sub.17 --C.sub.y -base work materials with interstitial inclusions, where M designates gallium and/or at least one metallic element serving to stabilize a rhombohedral 2:17 structure. A Sm.sub.2 Fe.sub.17-x M.sub.x C.sub.y powder mixture is produced, where x>0.1 and 3.gtoreq.y.gtoreq.0. The mixture is subjected to an intensive fine grinding process in a ball mill. The finely ground mixture is heat-treated in a temperature range from 650.degree. C. to 900.degree. C. for partial or complete recrystallization. The resulting ultra-fine-grain Sm.sub.2 Fe.sub.17-x M.sub.x C.sub.y magnetic powder is compacted to produce magnet bodies by a hot pressing processing in a temperature range from 650.degree. C. to 900.degree. C. The process is applicable, for example, for the production of hard-magnetic parts based on interstitial Sm.sub.2 Fe.sub.17 C.sub.y compounds.

Loading the Abstract Image...

First Claim