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Feasibility of magneto-optic flaw visualization using thin garnet films
- We investigate the feasibility of using rare-earth iron garnet films grown on (111)-oriented substrates as magneto-optic indicator films for the visualization of magnetic leakage fields in non-destructive evaluation. In most cases the leakage field of the defect has a strong component in the film plane. The influence of this in-plane dc magnetic field on the image formation is investigated. It is shown that the presence of a strong in-plane magnetic field allows one to extend the dynamic range of the out-of-plane field imposed by the uniaxial anisotropy field HA. On the other hand, an in-plane field reduces the sensitivity. The guidelines for selecting parameters of magneto-optic indicator films are given.
Author: | Mikhail Shamonin (Chamonine)ORCiDGND, T. Beuker, P. Rosen, M. Klank, Oliver Hagedorn, Horst Dötsch |
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DOI: | https://doi.org/10.1016/s0963-8695(00)00028-1 |
Parent Title (English): | NDT & E International |
Publisher: | Elsevier |
Document Type: | Article |
Language: | English |
Year of first Publication: | 2000 |
Release Date: | 2023/03/30 |
Tag: | Flaw visualization; Garnet films; Imaging; Magnetic flux leakage; Magneto-optics |
Volume: | 33 |
Issue: | 8 |
First Page: | 547 |
Last Page: | 553 |
Institutes: | Fakultät Elektro- und Informationstechnik |
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen | |
Begutachtungsstatus: | peer-reviewed |
Publication: | Externe Publikationen |
research focus: | Information und Kommunikation |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |