About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
Presentation Title |
Electrochemical Polishing of Thin Metallic Glass Ribbons |
Author(s) |
Ferenc Zamborszky, Eva Fazakas, Elek Csizmadia, Mark Kovacs |
On-Site Speaker (Planned) |
Ferenc Zamborszky |
Abstract Scope |
Soft magnetic inductive components with low power losses are forming the vital part of modern power electronic and electrotechnical equipment such like wind turbines, solar inverters, industrial drives and vehicles. Ribbons of thin metallic glass produced by planar flow casting and annealed into nanocrystalline structure are successful in achieving superb properties like ultralow coercitive force (Hc ~ 1 A/m), wide range of adjustable relative permeability (µr ~ 1 000 – 200 000) and wide operational temperature range (Top ~ 77 – 473 K). In this report we present investigations on electrochemically polished ribbons. Reduction of surface roughness from 1 – 2 µm to 200 – 400 nm was revealed by atomic force microscopy. Small core samples made of the ribbons were annealed in transversal magnetic field. Frequency dependence of complex permeability and power losses of these samples confirm that electrochemical polishing did not cause deterioration of the soft magnetic properties. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |