Reduction of core loss in non-oriented (NO) electrical steel by electroless-plated magnetic coating |
| |
| Authors: | Pornthep Chivavibul Manabu Enoki Shigeru Konda Yasushi Inada Tamotsu Tomizawa Akira Toda |
| |
| Institution: | 1. Department of Materials Engineering, The University of Tokyo, Tokyo, Japan;2. Toyota Motor Corporation, Aichi, Japan;3. Meltex Inc., Tokyo, Japan;1. Institute of Metal Forming, Technische Universität Bergakademie Freiberg, Bernhard-von Cotta-Str. 4, D-09596 Freiberg, Germany;2. Stahlzentrum Freiberg e.V., Leipziger Straße 34, D-09599 Freiberg, Germany;3. State Key Lab. of Refractories and Metallurgy, Wuhan University of Science and Technology, No. 947 Heping Avenue, Qingshan District, Wuhan 430081, PR China;1. CNRS, LAAS, 7 avenue du colonel Roche, F-31400 Toulouse, France;2. Univ of Toulouse, LAAS, F-31400 Toulouse, France;3. University of Toulouse, INSA, F-31400 Toulouse, France;4. Centre National d''Études Spatiales, Toulouse;1. Tata Steel, 1970 CA IJmuiden, The Netherlands;2. Tata Steel, S60 3AR South Yorkshire, United Kingdom |
| |
| Abstract: | An important issue in development of electrical steels for core-laminated products is to reduce core loss to improve energy conversion efficiency. This is usually obtained by tailoring the composition, microstructure, and texture of electrical steels themselves. A new technique to reduce core loss in electrical steel has been investigated. This technique involves electroless plating of magnetic thin coating onto the surface of electrical steel. The material system was electroless Ni–Co–P coatings with different thicknesses (1, 5, and 10 μm) deposited onto the surface of commercially available Fe–3% Si electrical steel. Characterization of deposited Ni–Co–P coating was carried out using X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive X-ray (EDX) spectrometer. The deposited Ni–Co–P coatings were amorphous and composed of 56–59% Ni, 32–35% Co, and 8–10% P by mass. The effect of coatings on core loss of the electrical steel was determined using single sheet test. A core loss reduction of 4% maximum was achieved with the Ni–Co–P coating of 1 μm thickness at 400 Hz and 0.3 T. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
