Authors:
Peter Nahringbauer (1), Alexander Holzer (1), Elisabeth Rauchenwald (2), Christoph Vogler (2), Christian Gierl-Mayer (1)
1- TU Wien, Austria
2- Huawei Technologies Austria GmbH
Abstract:
Soft magnetic materials are crucial for efficient energy conversion and transfer in various electrical devices and power systems. For ideal soft magnetic properties such as a high saturation magnetisation, high permeability and minimal losses, precise control over the material properties is necessary.
In this work, the ultrasonic atomization of Fe-based alloys is described as a new method to obtain powders with tailored compositions, particle size and morphology. Various production parameters were used to gain insight into their impact on the powder properties, focusing particularly on particle size. Additionally, this research also concentrates on phase formation and the chemical composition of the powders to study the underlying mechanisms during the atomization process. It was found that the ultrasonic atomization can provide highly spherical powders with a narrow particle size distribution while maintaining raw material composition. Therefore, it is suitable for small-batch production of novel soft magnetic powders for research purposes.
DOI:
https://doi.org/10.59499/EP246282701
