Factors affecting the magnetic properties of consolidated amorphous powder cores

It has been shown that it is possible to produce high density amorphous metal compacts on a routine basis, that have interesting soft magnetic properties. A study of some of the parameters determining their magnetic properties has been made. As expected, interparticle insulation and compact thickness affect the a.c. properties. Surprisingly, the magnetic properties were found to be relatively independent of compact density, in the range 73 to 98% of theoretical density. Low or zero magnetostriction alloys gave superior properties. If more than ~ 10% interparticle insulation is employed then the alloy composition is of less consequence. It is shown that a wide range of properties may be obtained.