[Zurück]

V. Galabov, H. Pfützner, G. Shilyashki, E Mulasalihovic, H. Yamaguchi, Y. Okazaki, S. Arai:
"Domain Reconstructions of g.o. SiFe During Rotational Magnetization with DC Bias";
Poster: International Workshop on 1&2 Dimensional Magnetic Measurement and Testing, Wien, Österreich; 03.09.2012 - 06.09.2012; in: "Short Paper Proceedings", (2012), ISBN: 3-902-105-03-8; S. 81 - 82.

Domain analyses of modern types of g. o. transformer steel are rare, and they are restricted to single grains. The present study reveals that grains of industrial, polycrystalline material react in specific ways according to individual crystallographic orientations. The amount of parameters is vvery large, in special if DC-bias is given as a further impact. the paper reports a procedure for statistical evaluations of quasi-dynamic Kerr effect images. The instantaneous area ratios of bar domain portion BD, plate domain portion PD and saturation S are determined with consideration of peak induction B_{RD} in the rolling direction (RD), axis ratio a, the angle Ψ between B and RD and the ratio r_{DC} of DC-bias. As the most distinct tendencies, BD decreases with increases of all four parameters, S increases with B_{RD} and r_{DC} for small Ψ, and PD increases with a and Ψ. Time changes of PD allow effective conclusions on multi-directional magnetostriction.