Anomalous loss hysteresis loop

AUTOR(ES)

Almeida, Adriano A., Rodrigues-Jr, Daniel L., Perassa, Laura S. P., Leicht, Jeanete, Landgraf, Fernando J. G.

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

28/02/2014

RESUMO

This paper discusses the anomalous loss behavior in two electrical steels types. Starting from a non oriented electrical steel coil, three groups of samples with different grain sizes were produced. Grain oriented steel samples were produced from a commercially available material. The experimental procedure was performed by means of magnetic properties measurements using an Epstein frame. A procedure to draw the hysteresis curve of the anomalous loss is proposed. The results reported that anomalous loss has a different behavior when the two electrical steel types are compared. In non oriented steels anomalous loss is concentrated at the low induction region. In grain oriented steels, a remarkable participation of high induction region is observed.

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