CMI scientists at Ames Laboratory conducted this research.
The less costly “dirty” cerium samples showed as much as a 5% increase of both coercivity and magnetization resulting also in better energy product.
Significance and impact
This promising result will significantly lower the production costs of the Ce-based “gap magnet,” yielding substantially increased commercialization opportunities.
Details and next steps
- Commercial Cerium of 99.9% purity was used instead of laboratory-grade high purity (99.99%) Cerium
- Next steps involve the detailed microscopical investigation and clarification of the phenomenon, which may involve an Fe, Co grain boundary phase