|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced Magnetic Materials for Energy and Power Conversion Applications
||Crystallization Kinetics in (Fe70Ni30)80Nb4Si2B14 Metal Amorphous Nanocomposites (MANCs)
||Natan Aronhime, Michael McHenry
|On-Site Speaker (Planned)
Metal amorphous nanocomposite (MANC) soft magnetic materials are of current interest for low permeability power converters and high permeability motors. At higher frequencies, motors and converters can be reduced in size while maintaining equivalent power output. Conventional materials are inefficient at high frequency due to smaller electrical resistivities and inability to cast and roll to 10’s of μm thickness. MANC materials can exhibit higher efficiencies due to high resistivities and low anisotropies. In the Fe-Ni MANC system, (Fe70Ni30)80Nb4Si2B14 is of particular interest.
Here, the crystallization kinetics of (Fe70Ni30)80Nb4Si2B14 is investigated. It is critical to understand the crystallization kinetics of MANCs to ensure that secondary crystallization, which is deleterious to the magnetic properties, will not occur over the projected lifetime of a device at operating temperature. As such, a time-temperature-transformation (TTT) diagram for secondary crystallization is presented for (Fe70Ni30)80Nb4Si2B14. A TTT diagram is also presented for primary crystallization.
||Planned: Supplemental Proceedings volume