|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials Science for High-Performance Permanent Magnets
||Recent Developments in RFe12-type Compounds for Permanent Magnets
||A.M. Gabay, George C. Hadjipanayis
|On-Site Speaker (Planned)
||George C. Hadjipanayis
A new rare-earth-free uniaxially anisotropic ZrFe10Si2 compound has been discovered, and R1-xZrxFe10Si2 compounds with R = Ce, Sm were proposed for the development of magnets that are minimally reliant on the rare earth elements. The newly employed mechanochemistry proved to be an attractive synthesis technique having produced in particular a submicron Sm0.7Zr0.3Fe10Si2 powder with a coercivity of 10.8 kOe and a calculated maximum energy product of 13.8 MGOe. At the same time, little progress has been made in the fabrication of fully dense -type RFe12 magnets because of the inherent instability of the nitrides and the unfavourable phase equilibria involving the more stable compounds. The work was supported by U.S. Department of Energy DOE-DE-FG02-90ER45413 and University of Delaware Energy Institute.