Sebastiao C. Paolinelli

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The objective of the present work is to assess the impact of improvements in standard characterization figures of merit of electrical steels, typically found in manufacturers catalogs (B<sub>50</sub> and W<sub>10/400</sub>), in the performance of high speed electrical motors. From the motor manufacturer standpoint, changing to new materials may represent a(More)
Two alloys of nonoriented electrical steel, with 2.45 and 3.3%Si, respectively, had their magnetic properties characterized in an Epstein frame. Hysteresis curves for total, quasi-static, and parasitic losses were plotted and overlapped to identify the region where the anomalous loss happens. It was observed that most anomalous loss is from the domain wall(More)
The demand for high speed electrical machines has increased recently, mainly in the electric or hybrid vehicles applications. Speeds as high as 13.000 rpm may be required, demanding new grades of electrical steels with improved magnetic properties. Such magnetic properties are typically characterized using parameters such as B<sub>50</sub> and(More)
Industrial rough bar samples of 2%Si were hot rolled in a pilot reversing mill at different finishing temperatures. Hot rolled bands 2.3 mm in thickness were cold rolled to 0.50 mm and final annealed at different temperatures under H<sub>2</sub>-N<sub>2</sub> atmosphere. To study the effect of hot band annealing, some samples were annealed at 1030 &#x00B0;C(More)
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