Influence of scratching on domain structure and power loss in amorphous ribbons

Author

Derebasi, Naim ; Meydan, Turgut ; Derebasi, Gülay

Author_Institution

Wolfson Centre for Magnetics Technol., Univ. of Wales Coll. of Cardiff, UK

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4821

Lastpage

4823

Abstract

Static domain observations were performed not only on polished and annealed samples but also on scratched samples with different scratching intervals by using the Kerr effect technique. The domain observations and loss measurements were carried out on 2605SC amorphous ribbon under 20 MPa tension to emulate a typical condition in a 100 kVA transformer. Loss measurements were carried out using the initial rate of rise of temperature technique over a frequency range of 50 to 400 Hz at flux densities from 0.8 to 1.4 Tesla. The transverse scratching of the sample surface was very effective on decreasing domain wall spacing. The anomaly factor was also found to alter due to changes in the domain mall spacing. A scratching interval of 3 mm was found to be the optimum for maximum energy saving on surface treated amorphous ribbons

Keywords

amorphous magnetic materials; annealing; boron alloys; glass structure; iron; magnetic domains; metallic glasses; polishing; silicon alloys; 0.8 to 1.4 tesla; 50 to 400 Hz; Fe₈₁B_13.5Si_3.5C₂; Kerr effect technique; amorphous ribbons; annealed samples; domain structure; loss measurements; maximum energy; polished samples; power loss; scratching influence; Amorphous magnetic materials; Amorphous materials; Annealing; Core loss; Density measurement; Frequency measurement; Kerr effect; Loss measurement; Power measurement; Surface treatment;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.334233

Filename

334233