Fabrication Technique for Novel Nanocrystalline Cores with High Saturation Polarization and Low Losses
Conference: PCIM Europe 2024 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
06/11/2024 - 06/13/2024 at Nürnberg, Germany
doi:10.30420/566262207
Proceedings: PCIM Europe 2024
Pages: 6Language: englishTyp: PDF
Authors:
Thamm, Merlin; Lindemann-Geipel, Inge; Hoehnel, Christoph; Weissgaerber, Thomas
Abstract:
Nanocrystalline toroidal cores of the Nanomet alloy are produced by FAST/SPS. Flakes are prepared by milling starting from an amorphous ribbon. An oxidation layer is formed by heat treatment for electrical insulation between the flakes in the compacted toroid. A layer of sol gel is applied to further improve the insulation. The compacted toroidal cores have a density of about 80 %. Low losses of only 50 W/kg at 1 T and 1 kHz can be achieved by using a pressing aid.