It is important to investigate and understand the magnetic properties of soft magnetic materials at cryogenic temperatures for the optimal design of superconducting machines and superconducting transformers. The magnetic properties of soft magnetic materials at room temperatures have been studied extensively. However, there is almost no information available for the magnetic properties of these materials at cryogenic temperatures. This paper for the first time presents the experimental results for the magnetic characterization of four soft magnetic materials from room temperature down to 21 K. The experimental results demonstrate that the core losses at 21 K is higher than room temperature for all the materials. They also show that the permeability of all the materials reduce at 21 K compared to room temperature. The optimal temperature in terms of the best magnetic properties is identified for each material. The data presented in this paper will provide valuable guidance for practical design and optimization of superconducting machines and superconducting transformers with soft magnetic cores.
- core loss
- magnetic characterization
- soft magnetic material
- superconducting machine
- superconducting transformer
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
FingerprintDive into the research topics of 'Magnetic Characterization of Soft Magnetic Cores at Cryogenic Temperatures'. Together they form a unique fingerprint.
- Department of Electronic & Electrical Engineering - Professor
- Electronics Materials, Circuits & Systems Research Unit (EMaCS)
- Institute for Advanced Automotive Propulsion Systems (IAAPS)
- EPSRC Centre for Doctoral Training in Advanced Automotive Propulsion Systems (AAPS CDT)
Person: Research & Teaching, Core staff