Publication Date:
2016-10-12
Description:
Author(s): B. Betz, P. Rauscher, R. P. Harti, R. Schäfer, A. Irastorza-Landa, H. Van Swygenhoven, A. Kaestner, J. Hovind, E. Pomjakushina, E. Lehmann, and C. Grünzweig Power transformers, key components of an electrical grid, have cores made of iron-silicon “electrical steel” alloys. The structures of magnetic domains in these highly anisotropic, grain-oriented laminates chiefly determine a core’s key properties, and thus its performance. The authors use neutron grating interferometry to observe these domain structures and their response to s t a t i c external magnetic fields. This direct access to a sample’s magnetic structure will enable physicists to improve our understanding of macroscopic magnetic phenomena in bulk ferromagnets, and will help engineers optimize these alloys and systems. [Phys. Rev. Applied 6, 024023] Published Tue Aug 30, 2016
Electronic ISSN:
2331-7019
Topics:
Physics
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